Reduction Couplers

Ideal for flexible tubing, these fittings have a superior single-barb design that provides a leakproof seal.

  • Black nylon, natural polypropylene or natural Kynar®
  • Nylon has good tensile strength for general applications
  • PP has good chemical resistance
  • Kynar® has good chemical & abrasion resistance
  • Kynar® is UV & ozone resistant
  • Maximum pressure @ 70°F: 150 psi (nylon), 125 psi (PP) & 260 psi ( Kynar®)
  • Temperature range: -50°F to 275°F (nylon), -9°F to 150°F (PP) & -80°F to 226°F (Kynar®)
  • PP meets FDA standards & Kynar® meets USP class VI
Stock Description Catalog Pg. Price
5/32" x 3/32" Tube ID Black Nylon Reduction Coupler
64269
$0.48​/Each
Save 5%50+$0.45/Each
Save 10%100+$0.43/Each
Save 15%300+$0.40/Each
P-210
$0.48​/Each
5/32" x 1/16" Tube ID Black Nylon Reduction Coupler
64268
$0.48​/Each
Save 5%50+$0.45/Each
Save 10%100+$0.43/Each
Save 15%300+$0.40/Each
P-210
$0.48​/Each
3/16" x 5/32" Tube ID Black Nylon Reduction Coupler
64274
$0.52​/Each
Save 5%50+$0.49/Each
Save 10%100+$0.46/Each
Save 15%300+$0.44/Each
P-210
$0.52​/Each
3/16" x 3/32" Tube ID Black Nylon Reduction Coupler
64272
$0.48​/Each
Save 5%50+$0.45/Each
Save 10%100+$0.43/Each
Save 15%300+$0.40/Each
P-210
$0.48​/Each
3/32" x 1/8" Tube ID Black Nylon Reduction Coupler
65608
$0.27​/Each
Save 5%50+$0.25/Each
Save 10%100+$0.24/Each
Save 15%300+$0.23/Each
P-210
$0.27​/Each
1/16" x 3/32" Tube ID Black Nylon Reduction Coupler
65605
$0.27​/Each
Save 5%50+$0.25/Each
Save 10%100+$0.24/Each
Save 15%300+$0.23/Each
P-210
$0.27​/Each
1/16" x 1/8" Tube ID Black Nylon Reduction Coupler
65612
$0.27​/Each
Save 5%50+$0.25/Each
Save 10%100+$0.24/Each
Save 15%300+$0.23/Each
P-210
$0.27​/Each
5/32" x 1/8" Tube ID Black Nylon Reduction Coupler
64270
$0.56​/Each
Save 5%50+$0.53/Each
Save 10%100+$0.50/Each
Save 15%300+$0.47/Each
P-210
$0.56​/Each
3/16" x 1/8" Tube ID Black Nylon Reduction Coupler
64273
$0.56​/Each
Save 5%50+$0.53/Each
Save 10%100+$0.50/Each
Save 15%300+$0.47/Each
P-210
$0.56​/Each
1/4" x 1/8" Tube ID Black Nylon Reduction Coupler
64275
$0.66​/Each
Save 5%50+$0.62/Each
Save 10%100+$0.59/Each
Save 15%300+$0.56/Each
P-210
$0.66​/Each
1/4" x 5/32" Tube ID Black Nylon Reduction Coupler
64276
$0.56​/Each
Save 5%50+$0.53/Each
Save 10%100+$0.50/Each
Save 15%300+$0.47/Each
P-210
$0.56​/Each
1/4" x 3/16" Tube ID Black Nylon Reduction Coupler
64277
$0.55​/Each
Save 5%50+$0.52/Each
Save 10%100+$0.49/Each
Save 15%300+$0.46/Each
P-210
$0.55​/Each
3/8" x 1/8" Tube ID Black Nylon Reduction Coupler
65945
$0.62​/Each
Save 5%50+$0.58/Each
Save 10%100+$0.55/Each
Save 15%300+$0.52/Each
P-210
$0.62​/Each
5/16" x 1/4" Tube ID Black Nylon Reduction Coupler
64278
$0.59​/Each
Save 5%50+$0.56/Each
Save 10%100+$0.53/Each
Save 15%300+$0.50/Each
P-210
$0.59​/Each
3/8" x 1/4" Tube ID Black Nylon Reduction Coupler
64279
$0.61​/Each
Save 5%50+$0.58/Each
Save 10%100+$0.54/Each
Save 15%300+$0.51/Each
P-210
$0.61​/Each
3/8" x 5/16" Tube ID Black Nylon Reduction Coupler
64280
$0.79​/Each
Save 5%50+$0.75/Each
Save 10%100+$0.71/Each
Save 15%300+$0.67/Each
P-210
$0.79​/Each
1/2" x 1/4" Tube ID Black Nylon Reduction Coupler
64281
$0.57​/Each
Save 5%50+$0.54/Each
Save 10%100+$0.51/Each
Save 15%300+$0.48/Each
P-210
$0.57​/Each
1/2" x 5/16" Tube ID Black Nylon Reduction Coupler
64282
$0.57​/Each
Save 5%50+$0.54/Each
Save 10%100+$0.51/Each
Save 15%300+$0.48/Each
P-210
$0.57​/Each
1/2" x 3/8" Tube ID Black Nylon Reduction Coupler
64283
$0.65​/Each
Save 5%50+$0.61/Each
Save 10%100+$0.58/Each
Save 15%300+$0.55/Each
P-210
$0.65​/Each
5/8" x 1/4" Tube ID Black Nylon Reduction Coupler
64284
$0.57​/Each
Save 5%50+$0.54/Each
Save 10%100+$0.51/Each
Save 15%300+$0.48/Each
P-210
$0.57​/Each
5/8" x 5/16" Tube ID Black Nylon Reduction Coupler
64285
$0.75​/Each
Save 5%50+$0.71/Each
Save 10%100+$0.67/Each
Save 15%300+$0.63/Each
P-210
$0.75​/Each
5/8" x 3/8" Tube ID Black Nylon Reduction Coupler
64286
$0.69​/Each
Save 5%50+$0.65/Each
Save 10%100+$0.62/Each
Save 15%300+$0.58/Each
P-210
$0.69​/Each
5/8" x 1/2" Tube ID Black Nylon Reduction Coupler
64287
$0.57​/Each
Save 5%50+$0.54/Each
Save 10%100+$0.51/Each
Save 15%300+$0.48/Each
P-210
$0.57​/Each
3/4" x 3/8" Tube ID Black Nylon Reduction Coupler
64288
$0.73​/Each
Save 5%50+$0.69/Each
Save 10%100+$0.65/Each
Save 15%300+$0.62/Each
P-210
$0.73​/Each
3/4" x 1/2" Tube ID Black Nylon Reduction Coupler
64289
$0.93​/Each
Save 5%50+$0.88/Each
Save 10%100+$0.83/Each
Save 15%300+$0.79/Each
P-210
$0.93​/Each
3/4" x 5/8" Tube ID Black Nylon Reduction Coupler
64290
$0.89​/Each
Save 5%50+$0.84/Each
Save 10%100+$0.80/Each
Save 15%300+$0.75/Each
P-210
$0.89​/Each
1" x 1/2" Tube ID Black Nylon Reduction Coupler
64291
$0.72​/Each
Save 5%50+$0.68/Each
Save 10%100+$0.64/Each
Save 15%300+$0.61/Each
P-210
$0.72​/Each
1" x 5/8" Tube ID Black Nylon Reduction Coupler
64292
$0.97​/Each
Save 5%50+$0.92/Each
Save 10%100+$0.87/Each
Save 15%300+$0.82/Each
P-210
$0.97​/Each
1" x 3/4" Tube ID Black Nylon Reduction Coupler
64293
$0.97​/Each
Save 5%50+$0.92/Each
Save 10%100+$0.87/Each
Save 15%300+$0.82/Each
P-210
$0.97​/Each
1/16" x 3/32" Tube ID Natural Polypropylene Reduction Coupler
65607
$0.35​/Each
Save 5%50+$0.33/Each
Save 10%100+$0.31/Each
Save 15%300+$0.29/Each
P-210
$0.35​/Each
1/16" x 1/8" Tube ID Natural Polypropylene Reduction Coupler
65614
$0.35​/Each
Save 5%50+$0.33/Each
Save 10%100+$0.31/Each
Save 15%300+$0.29/Each
P-210
$0.35​/Each
3/32" x 1/8" Tube ID Natural Polypropylene Reduction Coupler
65610
$0.35​/Each
Save 5%50+$0.33/Each
Save 10%100+$0.31/Each
Save 15%300+$0.29/Each
P-210
$0.35​/Each
5/32" x 1/16" Tube ID Natural Polypropylene  Reduction Coupler
65358
$0.61​/Each
Save 5%50+$0.58/Each
Save 10%100+$0.54/Each
Save 15%300+$0.51/Each
P-210
$0.61​/Each
5/32" x 3/32" Tube ID Natural Polypropylene Reduction Coupler
65360
$0.61​/Each
Save 5%50+$0.58/Each
Save 10%100+$0.54/Each
Save 15%300+$0.51/Each
P-210
$0.61​/Each
5/32" x 1/8" Tube ID Natural Polypropylene Reduction Coupler
64365
$0.65​/Each
Save 5%50+$0.61/Each
Save 10%100+$0.58/Each
Save 15%300+$0.55/Each
P-210
$0.65​/Each
3/16" x 1/16" Tube ID Natural Polypropylene Reduction Coupler
65359
$0.61​/Each
Save 5%50+$0.58/Each
Save 10%100+$0.54/Each
Save 15%300+$0.51/Each
P-210
$0.61​/Each
3/16" x 3/32" Tube ID Natural Polypropylene Reduction Coupler
65361
$0.61​/Each
Save 5%50+$0.58/Each
Save 10%100+$0.54/Each
Save 15%300+$0.51/Each
P-210
$0.61​/Each
3/16" x 1/8" Tube ID Natural Polypropylene Reduction Coupler
64368
$0.67​/Each
Save 5%50+$0.63/Each
Save 10%100+$0.60/Each
Save 15%300+$0.57/Each
P-210
$0.67​/Each
3/16" x 5/32" Tube ID Natural Polypropylene Reduction Coupler
65362
$0.69​/Each
Save 5%50+$0.65/Each
Save 10%100+$0.62/Each
Save 15%300+$0.58/Each
P-210
$0.69​/Each
1/4" x 1/8" Tube ID Natural Polypropylene Reduction Coupler
64370
$0.65​/Each
Save 5%50+$0.61/Each
Save 10%100+$0.58/Each
Save 15%300+$0.55/Each
P-210
$0.65​/Each
1/4" x 5/32" Tube ID Natural Polypropylene Reduction Coupler
64371
$0.65​/Each
Save 5%50+$0.61/Each
Save 10%100+$0.58/Each
Save 15%300+$0.55/Each
P-210
$0.65​/Each
1/4" x 3/16" Tube ID Natural Polypropylene Reduction Coupler
64372
$0.65​/Each
Save 5%50+$0.61/Each
Save 10%100+$0.58/Each
Save 15%300+$0.55/Each
P-210
$0.65​/Each
5/16" x 3/16" Tube ID Natural Polypropylene Reduction Coupler
65765
$0.48​/Each
Save 5%50+$0.45/Each
Save 10%100+$0.43/Each
Save 15%300+$0.40/Each
P-210
$0.48​/Each
5/16" x 1/4" Tube ID Natural Polypropylene Reduction Coupler
64373
$0.69​/Each
Save 5%50+$0.65/Each
Save 10%100+$0.62/Each
Save 15%300+$0.58/Each
P-210
$0.69​/Each
3/8" x 1/8" Tube ID Natural Polypropylene Reduction Coupler
65946
$0.75​/Each
Save 5%50+$0.71/Each
Save 10%100+$0.67/Each
Save 15%300+$0.63/Each
P-210
$0.75​/Each
3/8" x 1/4" Tube ID Natural Polypropylene Reduction Coupler
64374
$0.71​/Each
Save 5%50+$0.67/Each
Save 10%100+$0.63/Each
Save 15%300+$0.60/Each
P-210
$0.71​/Each
3/8" x 5/16" Tube ID Natural Polypropylene Reduction Coupler
64375
$0.67​/Each
Save 5%50+$0.63/Each
Save 10%100+$0.60/Each
Save 15%300+$0.57/Each
P-210
$0.67​/Each
1/2" x 1/4" Tube ID Natural Polypropylene Reduction Coupler
64376
$0.79​/Each
Save 5%50+$0.75/Each
Save 10%100+$0.71/Each
Save 15%300+$0.67/Each
P-210
$0.79​/Each
1/2" x 5/16" Tube ID Natural Polypropylene Reduction Coupler
64377
$0.69​/Each
Save 5%50+$0.65/Each
Save 10%100+$0.62/Each
Save 15%300+$0.58/Each
P-210
$0.69​/Each
1/2" x 3/8" Tube ID Natural Polypropylene Reduction Coupler
64378
$0.75​/Each
Save 5%50+$0.71/Each
Save 10%100+$0.67/Each
Save 15%300+$0.63/Each
P-210
$0.75​/Each
5/8" x 1/4" Tube ID Natural Polypropylene Reduction Coupler
64379
$0.69​/Each
Save 5%50+$0.65/Each
Save 10%100+$0.62/Each
Save 15%300+$0.58/Each
P-210
$0.69​/Each
5/8" x 5/16" Tube ID Natural Polypropylene Reduction Coupler
64380
$0.69​/Each
Save 5%50+$0.65/Each
Save 10%100+$0.62/Each
Save 15%300+$0.58/Each
P-210
$0.69​/Each
5/8" x 3/8" Tube ID Natural Polypropylene Reduction Coupler
64381
$0.69​/Each
Save 5%50+$0.65/Each
Save 10%100+$0.62/Each
Save 15%300+$0.58/Each
P-210
$0.69​/Each
5/8" x 1/2" Tube ID Natural Polypropylene Reduction Coupler
64382
$0.69​/Each
Save 5%50+$0.65/Each
Save 10%100+$0.62/Each
Save 15%300+$0.58/Each
P-210
$0.69​/Each
3/4" x 3/8" Tube ID Natural Polypropylene Reduction Coupler
64383
$0.75​/Each
Save 5%50+$0.71/Each
Save 10%100+$0.67/Each
Save 15%300+$0.63/Each
P-210
$0.75​/Each
3/4" x 1/2" Tube ID Natural Polypropylene Reduction Coupler
64384
$0.69​/Each
Save 5%50+$0.65/Each
Save 10%100+$0.62/Each
Save 15%300+$0.58/Each
P-210
$0.69​/Each
3/4" x 5/8" Tube ID Natural Polypropylene Reduction Coupler
64385
$0.78​/Each
Save 5%50+$0.74/Each
Save 10%100+$0.70/Each
Save 15%300+$0.66/Each
P-210
$0.78​/Each
1" x 1/2" Tube ID Natural Polypropylene Reduction Coupler
64386
$0.90​/Each
Save 5%50+$0.85/Each
Save 10%100+$0.81/Each
Save 15%300+$0.76/Each
P-210
$0.90​/Each
1" x 5/8
64387
$0.90​/Each
Save 5%50+$0.85/Each
Save 10%100+$0.81/Each
Save 15%300+$0.76/Each
P-210
$0.90​/Each
1" x 3/4" Tube ID Natural Polypropylene Reduction Coupler
64388
$0.90​/Each
Save 5%50+$0.85/Each
Save 10%100+$0.81/Each
Save 15%300+$0.76/Each
P-210
$0.90​/Each
1/16" x 3/32" Tube ID Natural Kynar® Reduction Coupler
65606
$0.53​/Each
Save 5%50+$0.50/Each
Save 10%100+$0.47/Each
Save 15%300+$0.45/Each
P-210
$0.53​/Each
1/16" x 1/8" Tube ID Natural Kynar® Reduction Coupler
65613
$0.53​/Each
Save 5%50+$0.50/Each
Save 10%100+$0.47/Each
Save 15%300+$0.45/Each
P-210
$0.53​/Each
3/32" x 1/8" Tube ID Natural Kynar® Reduction Coupler
65609
$0.53​/Each
Save 5%50+$0.50/Each
Save 10%100+$0.47/Each
Save 15%300+$0.45/Each
P-210
$0.53​/Each
5/32" x 1/16" Tube ID Natural Kynar® Reduction Coupler
64501
$0.83​/Each
Save 5%50+$0.78/Each
Save 10%100+$0.74/Each
Save 15%300+$0.70/Each
P-210
$0.83​/Each
5/32" x 3/32" Tube ID Natural Kynar® Reduction Coupler
64502
$0.88​/Each
Save 5%50+$0.83/Each
Save 10%100+$0.79/Each
Save 15%300+$0.74/Each
P-210
$0.88​/Each
5/32" x 1/8" Tube ID Natural Kynar® Reduction Coupler
64503
$1.10​/Each
Save 5%50+$1.04/Each
Save 10%100+$0.99/Each
Save 15%300+$0.93/Each
P-210
$1.10​/Each
3/16" x 1/16" Tube ID Natural Kynar® Reduction Coupler
64504
$0.88​/Each
Save 5%50+$0.83/Each
Save 10%100+$0.79/Each
Save 15%300+$0.74/Each
P-210
$0.88​/Each
3/16" x 3/32" Tube ID Natural Kynar® Reduction Coupler
64505
$0.96​/Each
Save 5%50+$0.91/Each
Save 10%100+$0.86/Each
Save 15%300+$0.81/Each
P-210
$0.96​/Each
3/16" x 1/8" Tube ID Natural Kynar® Reduction Coupler
64506
$1.13​/Each
Save 5%50+$1.07/Each
Save 10%100+$1.01/Each
Save 15%300+$0.96/Each
P-210
$1.13​/Each
3/16" x 5/32" Tube ID Natural Kynar® Reduction Coupler
64507
$1.08​/Each
Save 5%50+$1.02/Each
Save 10%100+$0.97/Each
Save 15%300+$0.91/Each
P-210
$1.08​/Each
1/4" x 1/8" Tube ID Natural Kynar® Reduction Coupler
64508
$1.57​/Each
Save 5%50+$1.49/Each
Save 10%100+$1.41/Each
Save 15%300+$1.33/Each
P-210
$1.57​/Each
1/4" x 5/32" Tube ID Natural Kynar® Reduction Coupler
64509
$1.55​/Each
Save 5%50+$1.47/Each
Save 10%100+$1.39/Each
Save 15%300+$1.31/Each
P-210
$1.55​/Each
1/4" x 3/16" Tube ID Natural Kynar® Reduction Coupler
64510
$1.56​/Each
Save 5%50+$1.48/Each
Save 10%100+$1.40/Each
Save 15%300+$1.32/Each
P-210
$1.56​/Each
5/16" x 1/4" Tube ID Natural Kynar® Reduction Coupler
64511
$1.62​/Each
Save 5%50+$1.53/Each
Save 10%100+$1.45/Each
Save 15%300+$1.37/Each
P-210
$1.62​/Each
3/8" x 1/8" Tube ID Natural Kynar® Reduction Coupler
65947
$1.85​/Each
Save 5%50+$1.75/Each
Save 10%100+$1.66/Each
Save 15%300+$1.57/Each
P-210
$1.85​/Each
3/8" x 1/4" Tube ID Natural Kynar® Reduction Coupler
64512
$1.72​/Each
Save 5%50+$1.63/Each
Save 10%100+$1.54/Each
Save 15%300+$1.46/Each
P-210
$1.72​/Each
3/8" x 5/16" Tube ID Natural Kynar® Reduction Coupler
64513
$1.74​/Each
Save 5%50+$1.65/Each
Save 10%100+$1.56/Each
Save 15%300+$1.47/Each
P-210
$1.74​/Each
1/2" X 1/4" Tube ID Natural Kynar® Reduction Coupler
64514
$2.07​/Each
Save 5%50+$1.96/Each
Save 10%100+$1.86/Each
Save 15%300+$1.76/Each
P-210
$2.07​/Each
1/2" x 5/16" Tube ID Natural Kynar® Reduction Coupler
64515
$2.09​/Each
Save 5%50+$1.98/Each
Save 10%100+$1.88/Each
Save 15%300+$1.77/Each
P-210
$2.09​/Each
1/2" x 3/8" Tube ID Natural Kynar® Reduction Coupler
64516
$2.12​/Each
Save 5%50+$2.01/Each
Save 10%100+$1.90/Each
Save 15%300+$1.80/Each
P-210
$2.12​/Each
5/8" x 1/4" Tube ID Natural Kynar® Reduction Coupler
64517
$2.18​/Each
Save 5%50+$2.07/Each
Save 10%100+$1.96/Each
Save 15%300+$1.85/Each
P-210
$2.18​/Each
5/8" x 5/16" Tube ID Natural Kynar® Reduction Coupler
64518
$2.29​/Each
Save 5%50+$2.17/Each
Save 10%100+$2.06/Each
Save 15%300+$1.94/Each
P-210
$2.29​/Each
5/8" x 3/8" Tube ID Natural Kynar® Reduction Coupler
64519
$2.34​/Each
Save 5%50+$2.22/Each
Save 10%100+$2.10/Each
Save 15%300+$1.98/Each
P-210
$2.34​/Each
5/8" x 1/2" Tube ID Natural Kynar® Reduction Coupler
64520
$2.38​/Each
Save 5%50+$2.26/Each
Save 10%100+$2.14/Each
Save 15%300+$2.02/Each
P-210
$2.38​/Each
3/4" X 3/8" Tube ID Natural Kynar® Reduction Coupler
64521
$2.71​/Each
Save 5%50+$2.57/Each
Save 10%100+$2.43/Each
Save 15%300+$2.30/Each
P-210
$2.71​/Each
3/4" x 1/2" Tube ID Natural Kynar® Reduction Coupler
64522
$2.83​/Each
Save 5%50+$2.68/Each
Save 10%100+$2.54/Each
Save 15%300+$2.40/Each
P-210
$2.83​/Each
3/4" x 5/8" Tube ID Natural Kynar® Reduction Coupler
64523
$3.00​/Each
Save 5%50+$2.85/Each
Save 10%100+$2.70/Each
Save 15%300+$2.55/Each
P-210
$3.00​/Each
1" x 1/2" Tube ID Natural Kynar® Reduction Coupler
64524
$3.54​/Each
Save 5%50+$3.36/Each
Save 10%100+$3.18/Each
Save 15%300+$3.00/Each
P-210
$3.54​/Each
1" X 5/8" Tube ID Natural Kynar® Reduction Coupler
64525
$3.67​/Each
Save 5%50+$3.48/Each
Save 10%100+$3.30/Each
Save 15%300+$3.12/Each
P-210
$3.67​/Each
1" x 3/4" Tube ID Natural Kynar® Reduction Coupler
64526
$3.86​/Each
Save 5%50+$3.66/Each
Save 10%100+$3.47/Each
Save 15%300+$3.28/Each
P-210
$3.86​/Each

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