Vita Spa filter. 7" x 14-3/4", TSC. Note: Remove "pad adapter" from the skimmer before threading MPT directly into the suction fitting. Filter Measurements & Details Unicel # OZ SQ. FT. OEM # Outside Diameter Length Top Bottom 7CH-50 3 oz. 50 SF PVT-50 7" 14-3/4" Handle 1-1/2" MPT 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.
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