Omnipure - ELF XL 1M - 15" x 4" ELF XL-Series 1 Micron Carbon Block Filter Quantity:Pack of 3 this is the most durable

this is the most durable replaceable shower filter Sprite manufactures

and 1725 RPM output

0% Salt Rejection ✓ 4" x 21" Format ✓ 36 sq ft Active Area

Replace filter cartridge when differential pressure reaches 15-20 PSI or flow rate decreases noticeably

Omnipure - ELF XL 1M - 15" x 4" ELF XL-Series 1 Micron Carbon Block Filter Quantity:Pack of 3 this is the most durableOmnipure ELF XL Series ELF XL 1M 15" x 4" Extra Large Format Carbon Block Filter Commercial grade 1 micron carbon block filtration engineered for high demand food service and institutional applications 1 Micron Carbon Block Extra Large 4" Diameter Cyst Reduction Chlorine & Odor Removal The Omnipure ELF XL 1M is designed for commercial operations that demand higher flow rates and extended service life. With an extra large 4" diameter x 15" length