2 Pack, Spun Polypropylene Cartridge, 1 Micron, Includes Filter Change Reminder Stickers, Cartridge Life 2 Months/8,000 Gallons, Reduces Sediment, Rust, Scale, Dirt, Coarse Sand, Fine Sand, Extra Fine Sand & Silt, For Use With Models HF-150A True Value #529-096 & HF-360 True Value #583-328, Level 4 Advanced Filtration. The Culligan P1 2-pack Level 4 Premium Filtration cartridge reduces sediment, rust, scale, dirt, coarse sand, sand fine sand, extra fine sand and silt. The replacement cartridge fits the following models: HF-150A, HF-160, HF-360 and most standard size housings. The filter is recommended for use with city and well water supplies. The cartridge life is up to 2 months or 8,000 gallons. Cartridge change reminder sticker included. Culligan P1 sediment cartridge fits models HF-150A, HF-160 or HF-360. Level 4 Premium Filtration Reduces: Sediment, sand, fine sand, extra fine sand and silt 1 Micron spun polypropylene cartridge. Use with Culligan HF-150A, HF-160 or HF-360 Recommended for use with city and well water supplies Package includes: Two P1 cartridges and cartridge change reminder sticker Filter life: 8,000 gallons or 2 months