RJ Filtration AK-4031: Replaces Pleatco PJ37-IN

RJ Filtration AK-4031 Replacement Hot Tub Cartridge Filter

(Replaces Pleatco PJ37-IN)

Aftermarket replacement for pleatco PJ37-IN Hot Tub Cartridge Filters, This Premium Hot Tub Filter provides maximum filtration and optimal water flow in hot tubs.

Cartridge Filter Dimensions:

• Diameter 5"
• Length 13 1/4"
• Top Hole 2 3/8"
• Bottom Hole 2 3/8"

Cartridge Filter Replaces:

• Pleatco PJ37-IN-4
• FILBUR FC-1437
• UNICEL C-5635
• Jacuzzi CFR/CFT 37 - #42-3533-00-R