Whole House Systems
  • Drinking Water Systems
  • Replacement Filters
  • verified_user Warranty Info
    Warranty Guarantee: 30 day 100% satisfaction guarantee
    Tier1

    TIER1-PAS-1438

    Tier1 Brand Replacement Pool and Spa Filter for 17-2327, 100586, 33521, 25392, 303909, M-4326, 817-2500 & R173429

    Fits the Dynamic Series I RDC-25, I RDC-25S, Dynamic Series II & II RTL/RCF-25, Dynamic Series IV-DFM, DFML and Waterway 25
    • Premium Flat bonded filter media for effective filtration across 100% of the filter's surface.

    • Worry-free sediment reduction for 3 months

    • Cost-effective replacement

    • Pleats can be rinsed to prolong effective life

    format_list_bulleted Features & Specs
    Package Qty: 1
    Manufacturer: Tier1
    Manufacturer's Id: PAS-1438
    UPC: 700355942429
    Actual Size (in): 13 5/16 inches (length) x 5 inches (outside diameter)
    Primary Filter Media: Flat Bonded Pleated Fabric
    Warranty Guarantee: 30 day 100% satisfaction guarantee
    Brand: Tier1
    Depth (in): 5 in
    Filter Diameter (in): 5 - 5.99
    Filter Length (in): 12 - 14.99
    Length (in): 13.38 in
    Outside Diameter (in): 5 in
    Pool Spa Manufacturer:
  • Tier1
  • Width (in): 5 in
    Media Square Feet: 25
    Media Weight (oz): 4 lb
    Replaces Pleatco: PRB25-IN
    Replaces Unicel: C-4326
    UPC's For Search: 700355942429
    Country of Origin: China
    Top Hole Size: 2 1/8 inches
    Filter Top Type: Open Hole
    Filter Bottom Type: Open Hole
    description Instructions
    1. It is time to clean or replace your filter cartridge when the pressure gauge on your filter tank reaches 8 psi above the pressure recorded when a new cartridge has been installed.
    2. It is also time to clean or replace your filter cartridge if there is a noticeable decrease in the pressure coming from your return jets.
    3. Turn the power off to your pump and bleed the excess air pressure of the system using the air valve on the filter.
    4. Remove any band clamps and/or lids to your filter.
    5. Remove the cartridge from the filter canister and dislodge any loose debris by directing a stream of water from a garden hose between each pleat.
    6. Do not use a high pressure car wash wand or a stiff brush to clean your cartridge. These abrasive methods may damage the filter media and snap the bands.
    7. Apply a spray on filter cleaner to the cartridge or grid to remove any oils or other organics. If stubborn stains persist, soak the cartridge overnight in a solution of TSP (trisodium phosphate).
    8. Rinse the cartridge thoroughly with clean fresh water and return it to the filter tank. Secure the tank lid and any band clamps.
    9. Restart your filtration system per manufacturer’s instructions.
    warning_amber Contaminants Reduced
  • Sand
  • Sediment
  • filter_alt Filter Life
    Filter Life (months): 3 months
    verified_user Warranty Info
    Warranty Guarantee: 30 day 100% satisfaction guarantee

    Tier1 PAS-1438 Replacement Pool and Spa Filter fits the Dynamic Series I RDC-25, I RDC-25S, Dynamic Series II & II RTL/RCF-25, Dynamic Series IV-DFM, DFML and Waterway 25. Tier1 Pool and Spa filters will protect your investment engineered to outperform the competition and exceed your expectations. Features high durability flat bonded filter media that maintains strength even when loaded with sediment. Flat bonded media provides effective filtration across 100% of the media surface compared to point bond media where up to 25% of the filter surface is blocked by the fiber bonds. Supported by a high strength, high flow core to support industry leading flow rates the Tier1 Pool and Spa filters will clean your water faster and more efficiently with less wear and tear on your pump. Dive in with Tier1, the water's great!


    TIER1-PAS-1438   is comparable with the following part number(s)

    • 702
    • 25392
    • 33521
    • 100586
    • 303909
    • 17-2325
    • 17-2327
    • C-4326
    • C-4625
    • FC-2370
    • FC-2375
    • M-4326
    • PAS-1438
    • PAS-1439
    • PAS-1440
    • PRB25-IN
    • PRB25-IN-4
    • PRB25-IN-M
    • SD-00196

    TIER1-PAS-1438   fits the following model number(s)

    • RDC-25
    • RDC-25S
    • RTL-25
    • RCF-25
    • DFM
    • DFML
    • Waterway 25
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