POOLPURE 4CH-21 Spa Filter Replaces PDM25P4, PTL18P4, PA13, PA17, Filbur FC-0121, 20245-238, PVT-25N, Baleen AK-9003, SD-00845, 18 sq.ft Screw in Male Fine(1 1/2" MPT) Thread Filter 2 Pack
POOLPURE 4CH-21 Spa Filter Replaces PDM25P4, PTL18P4, PA13, PA17, Filbur FC-0121, 20245-238, PVT-25N, Baleen AK-9003, SD-00845, 18 sq.ft Screw in Male Fine(1 1/2" MPT) Thread Filter 2 Pack
POOLPURE 4CH-21 Spa Filter Replaces PDM25P4, PTL18P4, PA13, PA17, Filbur FC-0121, 20245-238, PVT-25N, Baleen AK-9003, SD-00845, 18 sq.ft Screw in Male Fine(1 1/2" MPT) Thread Filter 2 Pack
POOLPURE 4CH-21 Spa Filter Replaces PDM25P4, PTL18P4, PA13, PA17, Filbur FC-0121, 20245-238, PVT-25N, Baleen AK-9003, SD-00845, 18 sq.ft Screw in Male Fine(1 1/2" MPT) Thread Filter 2 Pack
POOLPURE 4CH-21 Spa Filter Replaces PDM25P4, PTL18P4, PA13, PA17, Filbur FC-0121, 20245-238, PVT-25N, Baleen AK-9003, SD-00845, 18 sq.ft Screw in Male Fine(1 1/2" MPT) Thread Filter 2 Pack
POOLPURE 4CH-21 Spa Filter Replaces PDM25P4, PTL18P4, PA13, PA17, Filbur FC-0121, 20245-238, PVT-25N, Baleen AK-9003, SD-00845, 18 sq.ft Screw in Male Fine(1 1/2" MPT) Thread Filter 2 Pack
POOLPURE 4CH-21 Spa Filter Replaces PDM25P4, PTL18P4, PA13, PA17, Filbur FC-0121, 20245-238, PVT-25N, Baleen AK-9003, SD-00845, 18 sq.ft Screw in Male Fine(1 1/2" MPT) Thread Filter 2 Pack
POOLPURE 4CH-21 Spa Filter Replaces PDM25P4, PTL18P4, PA13, PA17, Filbur FC-0121, 20245-238, PVT-25N, Baleen AK-9003, SD-00845, 18 sq.ft Screw in Male Fine(1 1/2" MPT) Thread Filter 2 Pack
POOLPURE 4CH-21 Spa Filter Replaces PDM25P4, PTL18P4, PA13, PA17, Filbur FC-0121, 20245-238, PVT-25N, Baleen AK-9003, SD-00845, 18 sq.ft Screw in Male Fine(1 1/2" MPT) Thread Filter 2 Pack
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POOLPURE 4CH-21 Spa Filter Replaces PDM25P4, PTL18P4, PA13, PA17, Filbur FC-0121, 20245-238, PVT-25N, Baleen AK-9003, SD-00845, 18 sq.ft Screw in Male Fine(1 1/2" MPT) Thread Filter 2 PackPOOLPURE 4CH-21 Spa Filter Replaces PDM25P4, PTL18P4, PA13, PA17, Filbur FC-0121, 20245-238, PVT-25N, Baleen AK-9003, SD-00845, 18 sq.ft Screw in Male Fine(1 1/2" MPT) Thread Filter 2 PackPOOLPURE 4CH-21 Spa Filter Replaces PDM25P4, PTL18P4, PA13, PA17, Filbur FC-0121, 20245-238, PVT-25N, Baleen AK-9003, SD-00845, 18 sq.ft Screw in Male Fine(1 1/2" MPT) Thread Filter 2 PackPOOLPURE 4CH-21 Spa Filter Replaces PDM25P4, PTL18P4, PA13, PA17, Filbur FC-0121, 20245-238, PVT-25N, Baleen AK-9003, SD-00845, 18 sq.ft Screw in Male Fine(1 1/2" MPT) Thread Filter 2 PackPOOLPURE 4CH-21 Spa Filter Replaces PDM25P4, PTL18P4, PA13, PA17, Filbur FC-0121, 20245-238, PVT-25N, Baleen AK-9003, SD-00845, 18 sq.ft Screw in Male Fine(1 1/2" MPT) Thread Filter 2 PackPOOLPURE 4CH-21 Spa Filter Replaces PDM25P4, PTL18P4, PA13, PA17, Filbur FC-0121, 20245-238, PVT-25N, Baleen AK-9003, SD-00845, 18 sq.ft Screw in Male Fine(1 1/2" MPT) Thread Filter 2 PackPOOLPURE 4CH-21 Spa Filter Replaces PDM25P4, PTL18P4, PA13, PA17, Filbur FC-0121, 20245-238, PVT-25N, Baleen AK-9003, SD-00845, 18 sq.ft Screw in Male Fine(1 1/2" MPT) Thread Filter 2 PackPOOLPURE 4CH-21 Spa Filter Replaces PDM25P4, PTL18P4, PA13, PA17, Filbur FC-0121, 20245-238, PVT-25N, Baleen AK-9003, SD-00845, 18 sq.ft Screw in Male Fine(1 1/2" MPT) Thread Filter 2 PackPOOLPURE 4CH-21 Spa Filter Replaces PDM25P4, PTL18P4, PA13, PA17, Filbur FC-0121, 20245-238, PVT-25N, Baleen AK-9003, SD-00845, 18 sq.ft Screw in Male Fine(1 1/2" MPT) Thread Filter 2 Pack

POOLPURE 4CH-21 Spa Filter Replaces PDM25P4, PTL18P4, PA13, PA17, Filbur FC-0121, 20245-238, PVT-25N, Baleen AK-9003, SD-00845, 18 sq.ft Screw in Male Fine(1 1/2" MPT) Thread Filter 2 Pack

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Description

Brand: POOLPURE

Color: white

Features:

  • 【 NSF/ANSI 50 CERTIFIED QUALITY】POOLPURE Spa filters are rigorously tested and certified by IAPMO to meet the NSF/ANSI 50 standard, ensuring dependable performance and crystal-clear water quality for your spa.
  • 【SPECIFICATIONS】Length 8", Outside Diameter 4 5/8", Top: Handle; Bottom: 1 1/2" MPT/ Male Thread. Filtration Area: 18 sq. ft.; Filter Material: Trilobal Filtration Fabric.
  • 【COMPATIBLE MODELS】 PLF4CH-21 Spa Filter is compatible with PTL18P4, PTL18-4, PTL18-XP, Unicel: 4CH-21, Filbur: FC-0121, SD-00845, SD-00821, SD-00838, SD-01161, SD-01363,SD-00001,Aladdin 11901, Baleen AK-9003,Pageant Spa Top Load,Saratoga 20245-238,Vita PVT-25N and more. ★NOTE: POOLPURE is an independent brand offering compatible replacement products that are engineered to meet OEM standards. All original manufacturer names and part numbers are for reference only.
  • 【SUPERIOR FILTRATION PERFORMANCE】 The advanced Dirt-Locking technology captures over three times more debris than standard filter cartridges, including hair, dust, fine particles, and sediment, ensuring consistently clean, fresh, and crystal-clear pool or spa water.
  • 【EFFORTLESS CLEANING】The filter's trilobal fabric structure allows impurities to be released easily during cleaning, keeping the cartridge feeling like new. For optimal performance, clean once a month. ⚠️ Do not backwash — backwashing may cause cracks or permanent damage.
  • 【Trusted by 5 Million+ Pool & Spa Owners Worldwide】Trusted by over 5 million+ pool and spa owners worldwide, POOLPURE replacement pool filter cartridges deliver dependable filtration and long-lasting performance, helping keep pool and spa water clean, clear, and refreshing.
  • 【Proven by Athletes & Media】 Tested in real training environments and featuring Olympic swimmer Rhyan White, our filters deliver reliable performance where it matters most—while recognition from NBC Local highlights our commitment to consistent filtration and superior water quality.
  • 【PHTA Member – Industry-Trusted Performance】 As a proud member of the Pool & Hot Tub Alliance, PoolPure follows industry-recognized filtration standards to deliver superior performance, longer lifespan, and consistently crystal-clear water.

model number: PLF4CH-21

Part Number: PLF4CH-21

Package Dimensions: 10.0 x 9.8 x 5.0 inches

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