I have a Peter Mangone model RB-6 Pneumatic "Stapler" (looks like a stapler but "hammers" in the pex tubing). Works with RB-5 clips. I used this to do about 1500ft of underfloor radiant in my house (works great!), I have had it about 4 months. Don't see myself needing it any longer, so I will sell for $225 shipped free anywhere in the lower 48.