Kozy Kollar PV-4


  • Installs form INSIDE the Building OVER shingles
  • Works on architectural and conventual shingles
  • Designed for 4” PVC, Cast Iron and Copper Pipes
  • Works on flat to 12/12 roof pitches
  • Can be installed in any weather even snow.

UPC Badge

IAPMO Uniform Plumbing Code (UPC) Certification Mark: The International Association of Plumbing and Mechanical Officials (IAPMO) Shield is applied to products that are certified by IAPMO as complying with BOTH the product’s performance standard AND the Uniform Plumbing Code (UPC). Applies to all plumbing products, appliances, pipe, fixtures, valves and related products.


Never climb a roof to install a pipe flashing again!

Patented and proven, over 200,000 Kozy Kollars have been installed in New England in the last 15 years The Kozy Kollar is the only pipe flashing installed from INSIDE the building OVER shingles. With only three easy steps done in less then 15 minutes there as no reason to climb on a roof again.

3 Easy Steps:

  1. Mark the penetration with the supplied template, cut the hole from inside through the plywood and shingles with a reciprocating saw.
  2. Apply a thin bead of the suppled gasket sealant on the main seal. Pass the Kollar through the hole and set it on top of the shingles.
  3. Install the Lower Mounting install and tighten the six rod couplings. JOB”S Done

Additional information

Weight 5.2 lbs
Dimensions 12 × 8.5 × 2.5 in