Pentair/Rainbow DFM DFML IV, Black Skimmer Basket (R172661BK) insiders A spring like this is

A spring like this is useful because it helps the bypass mechanism move and respond the way the heater was designed to operate

When the original grid becomes damaged or worn

this Wonder Brush helps support cleaner traction and more effective overall scrubbing performance

12 inch by 9-3/4 inch format supports intended fit

Pentair/Rainbow DFM DFML IV, Black Skimmer Basket (R172661BK) insiders A spring like this isThe Pentair Rainbow R172661BK black skimmer basket is designed for compatible DFM and DFML IV skimmer applications where the internal basket needs replacement. A basket like this is useful because it helps intercept floating debris before that material can move into downstream circulation components. Replacement is often needed when the original basket becomes brittle, cracked, warped, or missing. Installing the correct Pentair Rainbow basket can help