These are easy to install, with some normal mechanical ability, which most men should have. Had to purchase 1 inch to 3/4 inch pex reducer to attach Pex Lines Directly to filter canisters, which seem to have no reduction in Flow whatsoever. The only issue is the amount of Teflon tape needed to install fittings, you need a lot .. with the extra Tape it seems to work well I installed the same system in my house 2 years ago with no leaks. This system with the Polyphasphate and Carbon Block filters is AWESOME. Absolutely no Chlorine smell or taste at all, plus no more itchy skin after the Chlorine showers. The Polyphasphate Filter actually reduces water hardness, we have extremely hard water. Don't like water softeners or all the salt Plus you can water plants inside and out with good clean water. You can drink from any faucet in the house To change filters is easy and use Food grade grease on the threads and especially on the "O" ring I put a metal bracket at angle to support Stainless mounting bracket, I have done that on all my installations. These Filters have been a GREAT value, and GREAT PRODUCT.. . Strongly recommend this product just me and wife and change Carbon Block and Polyphasphate filters every 10 months. Go by water usage it's in your water bill if in city These are a must have on any system