Aqua-Pure AP11T / AP11S and the CUNO CFS11T (# 55588-02) / CFS11 S (55588-02) models include a pressure relief button and are made from FDA CFR-21 Compliant Materials. The "T" and "S" suffix designates either a Transparent (clear) or Solid (opaque) sump housing. Includes AP110 5 micron grooved sediment filter and filter wrench.

Note: Clear Housing Sumps are more prone to leaking and cracking, and are not as resilient as their opaque counterparts. They may be significantly less able to handle high pressure, temperature, exposure to sunlight, and other stress. We highly recommend considering a black, blue, white, or grey opaque housing sump, especially if your system is operating under high pressure or temperature conditions. Fresh Water Systems offers heavy duty polypropylene filter housings in a variety of sizes and colors.