2019 NAPA Reference Guide

Fuel Filters - Special Applications Dispensing Equipment 4003 & 4004 In-Hose Fuel Filters For complete final protection against contaminant entry in the vehicle fuel system, we recommend this in-hose filter that can be easily installed just ahead of the pump nozzle. Equally effective for both diesel and gasoline fuel, the filter features a protective vinyl coating and is approved by Underwriters Laboratories, Inc. Part No. Description Dimensions Thread Connections Micron Rating Max. Flow 4003 Complete in-hose filter assembly* Lgth. 11” O.D. 2 1/4” 3/4” Female Pipe 7 12 GPM 4004 Replacement element Lgth. 7 15/16” O.D. 2 1/4” --- 7 12 GPM 4744 Complete in-hose filter assembly* Lgth. 11” O.D. 2 1/4” 3/4” Female Pipe 24 12 GPM 4044 Replacement element Lgth. 7 15/16” O.D. 2 1/4” --- 24 12 GPM * Includes replacement filter element Water Trap Fuel Filter A must for contractors, farmers, oil exploration crews and others whose gasoline or fuel oil is dispensed from pumps, skid tanks or mobile service facilities. The 4389 filter effectively removes dust, grit, dirt and other airborne contaminants while its water-removing capacity eliminates the hazard and expense of fuel-line freeze-ups in cold climates. The filter consists of a rustproof aluminum body with a removable, transparent bowl which is unaffected by either gasoline or fuel oil. All filters are pressure tested to 100 psi. The low-cost, easy-to-change replacement filter element for the water trap fuel filter is part no. 4390. The pleated paper element provides 354 sq. inches of filtering surface and is specially treated to remove water from gasoline or diesel fuel. NOTE: DO NOT use on pressure type dispensing pumps. Part No. Description Dimensions Thread Micron Max. Flow 4389 Complete filter assembly* Hgt. 11” O.D. 4 1/2” 1” Female Pipe 10 12 GPM 4390 Replacement element Hgt. 5 1/2” O.D. 3 1/8” --- 10 12 GPM 4338 Bowl Replacement --- --- --- --- * Includes filter element and bowl 1037