Keep your RV fresh water pump running clean. The Lippert Flow Max Screen Filter and Connectors kit (part 689059) installs in-line on the inlet side of your Flow Max pump to catch sediment, grit, and debris before they reach the pump head -- extending pump life and protecting your water system from contamination and premature wear.
Flow Max pumps are a popular choice on newer RVs and as drop-in replacements for aging demand pumps, but like any diaphragm-style pump, they are sensitive to debris in the water line. Grit, pipe scale, and sediment can score the diaphragm, damage the check valves, and reduce pressure output in a hurry. This screen filter kit from Lippert is the factory-correct solution -- designed specifically to mate with Flow Max pump inlets and outfitted with matching swivel connectors for a secure, drip-free connection.
The kit ships ready to install: one in-line screen filter body and two 1/2 in. swivel connectors. The swivel design allows you to align the inlet hose without twisting or stressing the line, a real advantage in the tight quarters typical of RV pump compartments.
Catches sediment, pipe scale, and debris before they reach the pump diaphragm and check valves.
Two 1/2 in. swivel connectors allow flexible hose alignment in tight pump compartments without line stress.
Engineered to match Flow Max pump inlet geometry -- no adapters or third-party fittings needed.
Backed by Lippert's limited 2-year warranty for added peace of mind on the road or at the campsite.
No additional fittings or tools beyond basic hand tools are required for a standard Flow Max pump installation. Hose clamps and supply hose are not included.
This screen filter and connector kit is designed for use with Lippert Flow Max fresh water pumps. If you are running a Flow Max pump in your RV, travel trailer, fifth wheel, or motorhome, this is the correct OEM-style filter kit. It is not a universal filter and is not intended for use with SHURflo, Flojet, or other pump brands without verifying thread and inlet compatibility independently.
If your Flow Max pump is showing reduced pressure, running longer than usual to build system pressure, or cycling on and off erratically, a clogged or missing inlet screen is one of the first things to check. Sediment buildup restricts flow into the pump, causing it to work harder and wear faster. Replacing or adding this filter kit is a low-cost step that can rescue pump performance before a full pump replacement becomes necessary.