grass man
Member
Anyone using 4.5 inch layflat pipe with standard 4 inch couplings, either stortz or Bauer? Don't want to go to 5 inch because I've multiple permanent underground road crossings and mains etc that are all 4 inch and don't want to need a pile of adaptors. Maybe nobody uses 4.5 inch, I've just noticed it on some pipe spec sheets. Tia