I've been using them for 7 years now and have had no problems with copper plumbing. This was recommended by a water chemist. I get about 2 years off it if 2 people live in this house.
Pentek R30 20BB Pleated Polyester Cartridge
7 Review
π§ The Ultimate Pentek Big Blue Housing NPT: Top-rated Choice for Exceptional Filtration
9 Review
Filter under the sink Aquaphor Crystal A, 1/2" white
51 Review
Hydronix CB 45 2001 Commercial Industrial Activated π§ Water Filter: The Ultimate Solution for Efficient Water Purification
7 Review
π§ NANPU 1/2" NPT Compressed Air Filter Regulator Combo Piggyback with Auto Drain, 5 Micron Brass Element, Poly Bowl, Metal Bracket, and 0-150 psi Gauge
18 Review
NANPU Compressed Air Filter Regulator Combo: Brass Element, Semi-Auto Drain, 0-150 Psi Gauge, And More
21 Review
NANPU Air Drying System With Double Filters And Pressure Regulator Combo For Clean And Controlled Air Supply
18 Review
NANPU 3/8" NPT Compressed Air Filter Regulator Combo Piggyback, 5 Micron Brass Element, Poly Bowl, Semi-Auto Drain, Metal Bracket, 0-150 Psi Gauge
26 Review