Pentair Filter Housing Replacement O-Rings –
✔️ Fits all 1/4″ & 3/8″ & 1/2″ Inlet Slim Line or Standard Filter Housings
✔️ Part #151121
✔️ Package of 2
*Great News! You can Mix & Match ALL Water Filters & Accessories to take Advantage of our Quantity Breaks Pricing!
Product Number FH 151121