Wisco Products 300 Series Filler Caps

Filler Caps and Accessories

For Manufacturers of Rail Locomotives, Marine and Racing Vehicles, Liquid Processing Systems
and Storage, and Heavy Duty Off-Road, Construction, Mining, Farm and Forestry Equipment

300 Series Filler Caps

Our high quality, precision-fabricated caps provide
excellent performance for a variety of fluid systems.

	For use with water, fuel, oil and hydraulic applications
	Heavy-duty locking cup and diaphragm
	20 gauge (.036 in) steel or stainless steel cover and cup
	300 Series caps pressure tested to 10 psi

CARB/EPA Compliance?
If you need a CARB/EPA compliant cap - just specify so when ordering. With the right options, any Wisco 300 Series cap can be supplied CARB/EPA compliant. Our all-metal construction prevents cap/fluid permeation. The positive-stop 1/4-turn design negates the need for the audible feedback requirement of threaded caps. Our chain options provide for a positive tether and our Viton gasket is compatible with most fuels and fluids.

Style	Material	Plating	Gasket Material	Venting (option)	Decal (option)	Chain (option)	Lock Tab (option)	Dipstick (option)
301 Knurled .PDF \| .DWG 302 Plain .PDF \| .DWG 303 Scalloped .PDF \| .DWG 304 Fixed Handle .PDF \| .DWG 305 Decal .PDF \| .DWG 306 6600 Shell .PDF \| .DWG 307 Comfort Grip .PDF \| .DWG	Steel Stainless Steel Aluminum and Stainless Combination	Zinc, Clear Zinc, Yellow Plain, Red or Black Anodized	2651 Synthetic Rubber (MIL-R-6855) 2651-1 Ethylene Propylene 2651-5 Viton 3455 For Oil - Synthetic Rubber (MIL-R-7362) 4050 Fluoro- Silicone (MIL-R-25988) 4825-1 Fibreflex (Pressboard) 4969 Molded Rubber (ASTMD 2000)	Nonvented Vented	For 305 & 306 styles only Fuel (Diesel shown) Oil Hydraulic Hydraulic (alternate) Other (Specify)	Stainless Link "S" Hook Split Keeper Ring	Steel Stainless Steel (No lock tab for CG Cap)	Spot welded to cup (specify length and markings) Solid Dipstick Flexible Dipstick View our dipstick reference