Multi-Purpose Tank Caps & Accessories

Flambeau® Fluid Systems manufactures a wide range of caps designed to pair with Multi-Purpose Tanks, Express Service Tanks, and many custom tank applications. Molded to industry-standard neck and thread sizes, these caps are commonly used on windshield washer systems, coolant recovery tanks, hydraulic reservoirs, chemical tanks, fuel tanks, and other fluid-handling systems. Each cap is injection molded for durability and includes a gasket to provide reliable sealing, excellent chemical resistance, and long-lasting performance in demanding environments.

  • Nylon, HDPE, or polypropylene body
  • EPDM or nitrile gaskets
  • Injection-molded construction
  • Superior chemical resistance & overall toughness
  • Available in vented & unvented designs
  • 1.625" neck dia. caps fit select 0.25 to 0.75 quart multi-purpose tanks
  • 2.25" neck dia. caps fit select 1 to 6 quart, 1 to 4 gallon & 8 gallon multi-purpose tanks
  • 3.5" neck dia. caps fit select 5 to 20 gallon multi-purpose tanks)
  • Tanks sold separately
Item # Description Catalog Pg. Price Add to Cart
1.625" Neck Dia. Thread Vented Black Polypropylene Threaded Multi-Purpose Tank Cap
Item 12068
1.73/Each
Save 5% when you buy 10+
Save 10% when you buy 20+
Save 15% when you buy 60+
P-346
1.73/Each
1.625" Neck Dia. Top Vented Black HDPE Threaded Multi-Purpose Tank Cap
Item 8929
2.68/Each
Save 5% when you buy 10+
Save 10% when you buy 20+
Save 15% when you buy 60+
P-346
2.68/Each
1.625" Neck Dia. Removable Nylon Neck Strainer
Item 13278
22/Each
Save 5% when you buy 25+
Save 10% when you buy 50+
Save 15% when you buy 150+
P-347
22/Each
2.25" Neck Dia. Removable Nylon Neck Strainer
Item 11488
19.64/Each
Save 5% when you buy 10+
Save 10% when you buy 20+
Save 15% when you buy 60+
P-346
19.64/Each
2.25" Neck Dia. Top Vented Black HDPE Buttress Multi-Purpose Tank Cap with Tether
Item 8675
4.02/Each
Save 5% when you buy 10+
Save 10% when you buy 20+
Save 15% when you buy 60+
P-346
4.02/Each
2.25" Neck Dia. Unvented Black Nylon Twist Grip™ Threaded Multi-Purpose Tank Cap
Item 11490
3.08/Each
Save 5% when you buy 10+
Save 10% when you buy 20+
Save 15% when you buy 60+
P-346
3.08/Each
2.25" Neck Dia. Black HDPE Injection-Molded Remote Filler Spout with 0.625" Outlet (Cap Sold Separately)
Item 17789
12.87/Each
Save 5% when you buy 10+
Save 10% when you buy 20+
Save 15% when you buy 60+
P-346
12.87/Each
2.25" Neck Dia. Thread Vented Black Nylon Twist Grip™ Threaded Multi-Purpose Tank Cap
Item 11489
3/Each
Save 5% when you buy 10+
Save 10% when you buy 20+
Save 15% when you buy 60+
P-346
3/Each
2.25" Neck Dia. Natural HDPE Injection-Molded Remote Filler Spout with 0.625" Outlet (Cap Sold Separately)
Item 17791
9.32/Each
Save 5% when you buy 10+
Save 10% when you buy 20+
Save 15% when you buy 60+
P-346
9.32/Each
2.25" Neck Dia. Unvented Green Nylon Twist Grip™ Threaded Diesel Fuel Tank Cap with 4" Tether
Item 13874
11.54/Each
Save 5% when you buy 10+
Save 10% when you buy 20+
Save 15% when you buy 60+
P-346
11.54/Each
2.25" Neck Dia. Thread Vented Green Nylon Twist Grip™ Threaded Diesel Fuel Tank Cap with 4" Tether
Item 13875
9.6/Each
Save 5% when you buy 10+
Save 10% when you buy 20+
Save 15% when you buy 60+
P-346
9.6/Each
2.25" Neck Dia. Top Vented Green Nylon Twist Grip™ Threaded Diesel Fuel Tank Cap with 4" Tether
Item 13876
15.07/Each
Save 5% when you buy 10+
Save 10% when you buy 20+
Save 15% when you buy 60+
P-346
15.07/Each
2.25" Neck Dia. Top Vented Black Polypropylene Threaded Multi-Purpose Tank Cap with Tether
Item 27667
5.12/Each
Save 5% when you buy 10+
Save 10% when you buy 20+
Save 15% when you buy 60+
NEW
5.12/Each
3.5" Neck Dia. Thread Vented Black Nylon Threaded Multi-Purpose Tank Cap
Item 11487
11.14/Each
Save 5% when you buy 10+
Save 10% when you buy 20+
Save 15% when you buy 60+
P-346
11.14/Each
3.5" Neck Dia. Black Nylon High Flow Remote Filler Spout with 1" Outlet & Black Flip Lid
Item 13873
13.25/Each
Save 5% when you buy 10+
Save 10% when you buy 20+
Save 15% when you buy 60+
P-346
13.25/Each
3.5" Neck Dia. Unvented Black Nylon Threaded Multi-Purpose Tank Cap
Item 11492
10.43/Each
Save 5% when you buy 10+
Save 10% when you buy 20+
Save 15% when you buy 60+
P-346
10.43/Each
3.5" Neck Dia. Unvented Green Nylon Threaded Diesel Fuel Tank Cap with 8" Tether
Item 13877
17.03/Each
Save 5% when you buy 10+
Save 10% when you buy 20+
Save 15% when you buy 60+
P-346
17.03/Each
3.5" Neck Dia. Thread Vented Green Nylon Threaded Diesel Fuel Tank Cap with 8" Tether
Item 13878
16.78/Each
Save 5% when you buy 10+
Save 10% when you buy 20+
Save 15% when you buy 60+
P-346
16.78/Each
3.5" Neck Dia. Top Vented Green Nylon Threaded Diesel Fuel Tank Cap with 8" Tether
Item 13879
18.18/Each
Save 5% when you buy 10+
Save 10% when you buy 20+
Save 15% when you buy 60+
P-346
18.18/Each
3.5" Neck Dia. Unvented Black Nylon Threaded Multi-Purpose Tank Cap with 8" Tether
Item 27668
9.54/Each
Save 5% when you buy 10+
Save 10% when you buy 20+
Save 15% when you buy 60+
NEW
9.54/Each
3.5" Neck Dia. Top Vented Black Nylon Threaded Multi-Purpose Tank Cap with 8" Tether
Item 27669
12.62/Each
Save 5% when you buy 10+
Save 10% when you buy 20+
Save 15% when you buy 60+
NEW
12.62/Each