Leakproof 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
3/16" Tube ID Natural Polypropylene Coupler
64393
3/16" Tube ID Natural Polypropylene Coupler
$0.61​/Each
Save 5%50+$0.58/Each
Save 10%100+$0.54/Each
Save 15%300+$0.51/Each
P-186
$0.61​/Each
In Stock
3/32" Tube ID Natural Polypropylene Coupler
65600
3/32" Tube ID Natural Polypropylene Coupler
$0.33​/Each
Save 5%50+$0.31/Each
Save 10%100+$0.29/Each
Save 15%300+$0.28/Each
P-186
$0.33​/Each
In Stock
3/32" Tube ID Natural Kynar® Coupler
65599
3/32" Tube ID Natural Kynar® Coupler
$0.49​/Each
Save 5%50+$0.46/Each
Save 10%100+$0.44/Each
Save 15%300+$0.41/Each
P-186
$0.49​/Each
In Stock
3/32" Tube ID Black Nylon Coupler
65598
3/32" Tube ID Black Nylon Coupler
$0.25​/Each
Save 5%50+$0.23/Each
Save 10%100+$0.22/Each
Save 15%300+$0.21/Each
P-186
$0.25​/Each
In Stock
1/16" Tube ID Natural Polypropylene Coupler
65604
1/16" Tube ID Natural Polypropylene Coupler
$0.33​/Each
Save 5%50+$0.31/Each
Save 10%100+$0.29/Each
Save 15%300+$0.28/Each
P-186
$0.33​/Each
In Stock
1/16" Tube ID Natural Kynar® Coupler
65603
1/16" Tube ID Natural Kynar® Coupler
$0.38​/Each
Save 5%50+$0.36/Each
Save 10%100+$0.34/Each
Save 15%300+$0.32/Each
P-186
$0.38​/Each
In Stock
1/16" Tube ID Black Nylon Coupler
65602
1/16" Tube ID Black Nylon Coupler
$0.39​/Each
Save 5%50+$0.37/Each
Save 10%100+$0.35/Each
Save 15%300+$0.33/Each
P-186
$0.39​/Each
In Stock
1/8" Tube ID Black Nylon Coupler
65572
1/8" Tube ID Black Nylon Coupler
$0.25​/Each
Save 5%50+$0.23/Each
Save 10%100+$0.22/Each
Save 15%300+$0.21/Each
P-186
$0.25​/Each
In Stock
1/8" Tube ID Natural Kynar® Coupler
65573
1/8" Tube ID Natural Kynar® Coupler
$0.51​/Each
Save 5%50+$0.48/Each
Save 10%100+$0.45/Each
Save 15%300+$0.43/Each
P-186
$0.51​/Each
In Stock
1/8" Tube ID Natural Polypropylene Coupler
65574
1/8" Tube ID Natural Polypropylene Coupler
$0.43​/Each
Save 5%50+$0.40/Each
Save 10%100+$0.38/Each
Save 15%300+$0.36/Each
P-186
$0.43​/Each
In Stock
5/32" Tube ID Black Nylon Coupler
64320
5/32" Tube ID Black Nylon Coupler
$0.38​/Each
Save 5%50+$0.36/Each
Save 10%100+$0.34/Each
Save 15%300+$0.32/Each
P-186
$0.38​/Each
In Stock
3/16" Tube ID Black Nylon Coupler
64321
3/16" Tube ID Black Nylon Coupler
$0.48​/Each
Save 5%50+$0.45/Each
Save 10%100+$0.43/Each
Save 15%300+$0.40/Each
P-186
$0.48​/Each
In Stock
1/4" Tube ID Black Nylon Coupler
64322
1/4" Tube ID Black Nylon Coupler
$0.39​/Each
Save 5%50+$0.37/Each
Save 10%100+$0.35/Each
Save 15%300+$0.33/Each
P-186
$0.39​/Each
In Stock
5/16" Tube ID Black Nylon Coupler
64323
5/16" Tube ID Black Nylon Coupler
$0.59​/Each
Save 5%50+$0.56/Each
Save 10%100+$0.53/Each
Save 15%300+$0.50/Each
P-186
$0.59​/Each
In Stock
3/8" Tube ID Black Nylon Coupler
64324
3/8" Tube ID Black Nylon Coupler
$0.39​/Each
Save 5%50+$0.37/Each
Save 10%100+$0.35/Each
Save 15%300+$0.33/Each
P-186
$0.39​/Each
In Stock
1/2" Tube ID Black Nylon Coupler
64325
1/2" Tube ID Black Nylon Coupler
$0.63​/Each
Save 5%50+$0.59/Each
Save 10%100+$0.56/Each
Save 15%300+$0.53/Each
P-186
$0.63​/Each
In Stock
5/8" Tube ID Black Nylon Coupler
64326
5/8" Tube ID Black Nylon Coupler
$0.69​/Each
Save 5%50+$0.65/Each
Save 10%100+$0.62/Each
Save 15%300+$0.58/Each
P-186
$0.69​/Each
In Stock
3/4" Tube ID Black Nylon Coupler
64327
3/4" Tube ID Black Nylon Coupler
$0.79​/Each
Save 5%50+$0.75/Each
Save 10%100+$0.71/Each
Save 15%300+$0.67/Each
P-186
$0.79​/Each
In Stock
1" Tube ID Black Nylon Coupler
64328
1" Tube ID Black Nylon Coupler
$1.07​/Each
Save 5%50+$1.01/Each
Save 10%100+$0.96/Each
Save 15%300+$0.91/Each
P-186
$1.07​/Each
In Stock
5/32" Tube ID Natural Polypropylene Coupler
64392
5/32" Tube ID Natural Polypropylene Coupler
$0.61​/Each
Save 5%50+$0.58/Each
Save 10%100+$0.54/Each
Save 15%300+$0.51/Each
P-186
$0.61​/Each
In Stock
1/4" Tube ID Natural Polypropylene Coupler
64394
1/4" Tube ID Natural Polypropylene Coupler
$0.41​/Each
Save 5%50+$0.39/Each
Save 10%100+$0.36/Each
Save 15%300+$0.34/Each
P-186
$0.41​/Each
In Stock
5/16" Tube ID Natural Polypropylene Coupler
64395
5/16" Tube ID Natural Polypropylene Coupler
$0.63​/Each
Save 5%50+$0.59/Each
Save 10%100+$0.56/Each
Save 15%300+$0.53/Each
P-186
$0.63​/Each
In Stock
3/8" Tube ID Natural Polypropylene Coupler
64396
3/8" Tube ID Natural Polypropylene Coupler
$0.41​/Each
Save 5%50+$0.39/Each
Save 10%100+$0.36/Each
Save 15%300+$0.34/Each
P-186
$0.41​/Each
In Stock
1/2" Tube ID Natural Polypropylene Coupler
64397
1/2" Tube ID Natural Polypropylene Coupler
$0.71​/Each
Save 5%50+$0.67/Each
Save 10%100+$0.63/Each
Save 15%300+$0.60/Each
P-186
$0.71​/Each
In Stock
5/8" Tube ID Natural Polypropylene Coupler
64398
5/8" Tube ID Natural Polypropylene Coupler
$0.43​/Each
Save 5%50+$0.40/Each
Save 10%100+$0.38/Each
Save 15%300+$0.36/Each
P-186
$0.43​/Each
In Stock
3/4" Tube ID Natural Polypropylene Coupler
64399
3/4" Tube ID Natural Polypropylene Coupler
$0.74​/Each
Save 5%50+$0.70/Each
Save 10%100+$0.66/Each
Save 15%300+$0.62/Each
P-186
$0.74​/Each
In Stock
1" Tube ID Natural Polypropylene Coupler
64400
1" Tube ID Natural Polypropylene Coupler
$0.89​/Each
Save 5%50+$0.84/Each
Save 10%100+$0.80/Each
Save 15%300+$0.75/Each
P-186
$0.89​/Each
In Stock
5/32" Tube ID Natural Kynar® Coupler
64435
5/32" Tube ID Natural Kynar® Coupler
$1.08​/Each
Save 5%50+$1.02/Each
Save 10%100+$0.97/Each
Save 15%300+$0.91/Each
P-186
$1.08​/Each
In Stock
3/16" Tube ID Natural Kynar® Coupler
64436
3/16" Tube ID Natural Kynar® Coupler
$1.17​/Each
Save 5%50+$1.11/Each
Save 10%100+$1.05/Each
Save 15%300+$0.99/Each
P-186
$1.17​/Each
In Stock
1/4" Tube ID Natural Kynar® Coupler
64437
1/4" Tube ID Natural Kynar® Coupler
$1.53​/Each
Save 5%50+$1.45/Each
Save 10%100+$1.37/Each
Save 15%300+$1.30/Each
P-186
$1.53​/Each
In Stock
5/16" Tube ID Natural Kynar® Coupler
64438
5/16" Tube ID Natural Kynar® Coupler
$1.63​/Each
Save 5%50+$1.54/Each
Save 10%100+$1.46/Each
Save 15%300+$1.38/Each
P-186
$1.63​/Each
In Stock
3/8" Tube ID Natural Kynar® Coupler
64439
3/8" Tube ID Natural Kynar® Coupler
$1.78​/Each
Save 5%50+$1.69/Each
Save 10%100+$1.60/Each
Save 15%300+$1.51/Each
P-186
$1.78​/Each
In Stock
1/2" Tube ID Natural Kynar® Coupler
64440
1/2" Tube ID Natural Kynar® Coupler
$2.08​/Each
Save 5%50+$1.97/Each
Save 10%100+$1.87/Each
Save 15%300+$1.76/Each
P-186
$2.08​/Each
In Stock
5/8" Tube ID Natural Kynar® Coupler
64441
5/8" Tube ID Natural Kynar® Coupler
$2.39​/Each
Save 5%50+$2.27/Each
Save 10%100+$2.15/Each
Save 15%300+$2.03/Each
P-186
$2.39​/Each
In Stock
3/4" Tube ID Natural Kynar® Coupler
64442
3/4" Tube ID Natural Kynar® Coupler
$3.00​/Each
Save 5%50+$2.85/Each
Save 10%100+$2.70/Each
Save 15%300+$2.55/Each
P-186
$3.00​/Each
In Stock
1" Tube ID Natural Kynar® Coupler
64443
1" Tube ID Natural Kynar® Coupler
$3.86​/Each
Save 5%50+$3.66/Each
Save 10%100+$3.47/Each
Save 15%300+$3.28/Each
P-186
$3.86​/Each
In Stock

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