Product Information
Description
APC APCC7261 50 Sq Ft Pool Filter Cartridge
7-7/8" x 11-1/8" replacement element for Pentair / Pac Fab Mytilus FMY 50.
The APC APCC7261 is a 50 square foot pleated replacement filter cartridge that drops into the Pentair / Pac Fab Mytilus FMY 50 cartridge filter system. It measures 7-7/8 in outer diameter by 11-1/8 in length with a 3-1/16 in open hole at both ends, and crosses directly to Unicel C-7678, Pleatco PFAB50, and Filbur FC-1920.
| Brand | APC |
|---|---|
| Model / MPN | APCC7261 |
| PST SKU | PST-APCC7261 |
| Type | Pleated Cartridge Filter Element |
| Fits Filter System | Pentair / Pac Fab Mytilus FMY 50 |
| Filter Area | 50 sq ft |
|---|---|
| Media | Reemay 2040 polyester |
| Media Weight | 4 oz |
| Pleat Count | 152 |
| End Caps | Thermally bonded polyurethane |
| Core | Free-flow molded core |
| Outer Diameter | 7-7/8 in |
|---|---|
| Length | 11-1/8 in |
| Top Opening | 3-1/16 in open hole |
| Bottom Opening | 3-1/16 in open hole |
- Pentair / Pac Fab Mytilus FMY 50 cartridge filter
- Pac Fab MY 50 filter housings using a 50 sq ft element
- Any system originally fitted with Unicel C-7678, Pleatco PFAB50, or Filbur FC-1920
Does this replace my Unicel C-7678 or Pleatco PFAB50?
Yes. The APCC7261 is a direct cross for Unicel C-7678, Pleatco PFAB50, and Filbur FC-1920. Same 7-7/8 in diameter, 11-1/8 in length, 50 sq ft area, and 3-1/16 in open ends, so it seats the same way in the Mytilus FMY 50 housing.
How many cartridges does the Mytilus FMY 50 take?
The Pentair / Pac Fab Mytilus FMY 50 uses a single 50 sq ft element. Order one APCC7261 per filter, or buy a spare so you can rotate one in while the other dries after cleaning.
How often should I replace it?
Rinse the pleats whenever the pressure gauge climbs 8 to 10 PSI above the clean starting pressure. Most cartridges run one to three seasons depending on bather load and water chemistry, then get replaced once the pleats stay gray or the fabric thins.
Additional Info
| Category | Pool Products Pool Filters Replacement Filter Cartridge |
| SKU | PST-APCC7261 |
| MPN | APCC7261 |
| Replaces | FC-1920 |
| Manufacturer | APC |
| Weight | 2.5 lb |
Let customers speak for us
Loved how fast it got here. It has small wiring and I was glad it was in a protective envelope and it arrived without breaking.
just as listed. well packeged, fast ahip, works fine. purchased to remedy issue with heater and ozone injectorboth operating together. might have been able to just bend old switch a bit but did not try that.
Great customer service and knowledge of product. Asked of compatibility and they had the answer. My intouch2 was not working so I researched new intouch3 from Spa Dealer and they wanted $75 just to come out, then $125 for up to an hr...just to confirm what I already knew. Contacted PST and they had the product and confirmed compatibility. Saved me some $$.Thanks PST.
pool definitely running much better with all the updated parts
This was a perfect fit for my aquarite salt system. And 1/3 of the price of anyone around
Correct parts, delivered as promised. What else could I ask for?
Easy to install and the replacement parts appear better than the original ones.
Easy web site interaction, fair prices, very quick shipping
I received order it is not exaclty the same.but i called.them and they called.balboa and.then called me.back to.tell me what to.do. most.lf the time u lucky to.get.an email back.let alone someone that will take the time to.actually help u
Used frogs for decades. Love the no chlorine taste in the water.
