Purex DM 75 Pool Filter Cartridge C-8401
Item: SF-001167
Pentair pool filter, Purex DM 75.
Note: Product has white end caps.
How To Find A Replacement Filter For your Swimming Pool Or Spa
Please check and measure your swimming pool cartridge filter before buying. Filter image photo is generic, actual filter may vary.
How To Compute The Square Footage Of A Filter Cartridge
When To Replace Your Filter Cartridge
Note: Product has white end caps.
| Filter Measurements & Details | |||||||
| Unicel # | OZ | SQ. FT. | OEM # | Outside Diameter | Length | Top | Bottom |
| C-8401 | 4 oz. | 75 SF | R173579 175689 |
8-7/8" | 19-1/2" | 4" | 4" |
Features include
- Price is for one filter cartridge
- OEM Quality Reemay® Polyester media
- Straight, sharp and evenly spaced pleats for efficient dirt holding and capturing
- Durable polyurethane end caps for strength and proper sealing in filter tank
- Re-enforced center cores with a PVC center core for support
- Evenly spaced holes in center core for even distribution of water flow through the cleaning cartridge
- Made in USA
How To Find A Replacement Filter For your Swimming Pool Or Spa
- #1 Measure the outside diameter of the cartridge in inches (+ or - 1/16")
- #2 Measure the overall length of the cartridge in inches (+ or - 1/16"), including the end caps. You don't need to include any handles or strings. A more accurate measurement can be obtained by measuring through the center hole of the pool cartridge when possible
- #3 Make a note of the (OEM) original manufacturer model number of the replacement cartridge
- #4 Take note whether or not there is a center core (PVC pipe in the center) and also count the number of pleats (+ or - 2)
Please check and measure your swimming pool cartridge filter before buying. Filter image photo is generic, actual filter may vary.
How To Compute The Square Footage Of A Filter Cartridge
- #1 Count the number of pleats and measure the pleat depth in inches
- #2 Measure the length of the cartridge in inches excluding the end caps
- #3 Multiply the number of pleats by 2 and multiply that number the the pleat depth. Multiply the total by the length of the cartridge (excluding the end caps) and divide that number by 144
- Example:# of pleats x 2 x pleat depth x pleat length divided by 144 = cartridge square footage
When To Replace Your Filter Cartridge
- When the pressure gauge on your filter tank reaches 8 PSI above the pressure recorded when a new cartridge is installed, or when there is a decrease in pressure coming from your return jets.
