817-0081 Waterway 178580 Pentair Comparable Tier1 Replacement Pool and Spa Filter

Price $48.99
Availability: In Stock
Fits the Pentair Clean & Clear Plus 320, Quantum CM/RPM 360, Quantum CM/RPM 90 and Waterway Crystal Water 325
  • Reduces sediment for up to 3 months
  • Prolong the life and performance of the filter by rinsing it between changes
  • Fits in place of Filbur FC-1976, Pleatco PCC80, and Unicel C-7470 filters.
  • Bottom hole size: 3 inches
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The Tier1 PAS-1158 replacement pool and spa filter is built to quickly and efficiently clean your water without putting extra wear and tear on your system's pump. The 3 ounce media filter fits the Pentair Clean & Clear Plus 320 and features high durability filter fabric that maintains strength even when loaded with sediment. The Tier1 PAS-1158 media has a tight porosity, a denser weave, and 80 square feet of media to capture even more contaminants in less time, while the highly durable core supports the filter while maintaining its high flow rate.

Experience the Tier1 Difference

Tier1 manufactures high-quality filtration and household products. We take creating and maintaining a healthy home seriously. Products must undergo rigorous testing and meet demanding quality expectations in order to earn the Tier1 badge. Every purchase is backed by the Tier1® Guarantee:

  • Guaranteed Fit
  • Guaranteed Quality
  • Guaranteed Price

Summer is Here!

The Tier1 Pool and Spa Filters provide quality filtration that will keep your pool clean all summer long! This filter protects your pool equipment from sand and sediment that could be cause damage. This filter is easy to install and maintenance is a breeze. Reduce the stress of keeping your pool clean by using the Tier1 Pool and Spa Filter! Enjoy your Summer!

Package Qty 1
Replaces Filbur FC-1976
Replaces Pleatco PCC80
Replaces Unicel C-7470
Pool/Spa Manufacturer Tier1
Manufacturer's Id PAS-1158
UPC 700355942405
Bottom Hole Size 3 inches
Media Weight (oz) 4
Media Square Feet 80
Actual Size (in) 20 inches (length) x 7 inches (outside diameter)
Actual Size (cm) 50.80 x 17.78
Primary Filter Media Pleated Fabric
Filter Life (months) 3 months
Warranty Guarantee 30 day 100% satisfaction guarantee
Primary Filter Media Pleated Fabric

Reduced Contaminants

The TIER1-PAS-1158 reduces the following contaminants:

  • Sand
  • Sediment

The TIER1-PAS-1158 is comparable with the following part numbers

178580 817-0081 C-7470 C-7470-4
FC-1976 PAS-1158 PAS-1159 PAS-1160
PCC80 PCC80-PAK4 R173573 SD-00162


  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.

Reset Instructions