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Similar OEM Quality, Lower Price
Premium Quality Alternative
S1-20 Pentek Comparable Whole House Filter Replacement Cartridge by Tier1
  • Coconut Shell activated Carbon Filter
  • Independently Tested
  • Unconditional 6-Month Guarantee
In Stock
1 Filter
Save $6.00
$6.99
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100% Genuine OEM Parts
Your Current Selection
S1-20 Pentek Whole House Filter Replacement Cartridge
  • Coconut Shell activated Carbon Filter
  • Independently Tested
  • Unconditional 6-Month Guarantee
In Stock
1 Filter $12.99
  • Product Comparison
  • Instructions
  • Frequently Asked Questions
Recommended Low-Cost Alternative Your Current Selection
Price Per Filter As Low As $6.99 per filter with 1 pack As Low As $12.99 per filter with 1 pack
Model S1-20 S1-20
Filter Life (months) 6 months 6 months
Primary Filter Media Pleated Cellulose Pleated Cellulose
Warranty Guarantee Unconditional Guarantee for Life of the Product
Actual Size (in) 20 inches (length) x 2 5/8 inches (outside diameter) 20 inches (length) x 2 5/8 inches (outside diameter)