Clarathon FC-0121 Spa Filter PTL18P4-4 4CH-21
One and seven eights inch threads
Thread profile fine MPT
Clarathon FC-0121 Spa Filter PTL18P4-4 4CH-21
One and seven eights inch threads
Thread profile fine MPT

Clarathon FC-0121 Spa Filter PTL18P4-4 4CH-21

FC0121
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Clarathon® Premium Ultra Hot Tub Filters provide unmatched performance at a great price.

Type: Threaded fitting in filter cap. Screw-In

Diameter:Measured across end cap at widest point.4⅝"

Length:Measured end cap to end cap, excluding any handles, threads, fittings or protrusions. 8"

Top: Handle

Thread:Measured outside diameter. Also called 1½" MPT. 1⅞" Fine

Media:Media area & weight/yard.18 SF-3oz

Cross reference: Unicel 4CH-21 | Pleatco PTL18P4-4 | Filbur FC-0121 | R173372, XLS437, 11901, 20245-238, 40191

Product notes: Always keep spare clean, dry cartridges on hand.
Used in: Atera | California Cooperage | Champion | Galaxy | Saratoga Spas | Vita | and others


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