Will work with other manufactures filters including: Cross Reference 100533, 17-175-1595, 172380, 201987300, 25391, 25393, 3301-2145, 6540-471, C4950, PENR172380, PRB50-IN, PRB50IN, R172380
Diameter= 4-15/16in.; Length=13-5/16in.; Top=2-1/8in.; Bottom=2-1/8in
NOTE: Filters should be replaced once every 6 months to ensure max flow through rate.
This unit is brand new and is for 4 pack of the 50 sq ft filter cartridges. Filter housing canister is sold separately.