Your Shopping Cart is empty.
Give it purpose - fill it with water filters, air filters, refrigerator filters, and more.
The Filbur FC-3840 is the replacement filter for the Muskin FD-40 R.
Guaranteed to fit or your money back!
The Muskin Pools FD-40 Comp. Pool & Spa Filter is a spa filter cartridge measuring 6 1/4" in diameter and 8" in length with 2 3/8" Open top & bottom styles. Featuring 20 sq. ft. of media area, this compatible Muskin Spas filter purifies swimming pool & spa water.