Culligan 4020636 4 in. Rubber Replacement O-Ring

The SPAX 2 in. Thermal-Grip flat washer provides superior holding power when attaching either building wrap or continuous rigid insulation. The solid cap design helps to prevent air and moisture intrusion through the air barrier penetration. Air barrier/building wrap manufacturer approved.

• Flat bottom for flush mounting
• Stiffened center Bullseye ring prevents fastener pull-through
• Flexible perimeter compresses on surface and reduces tearing of wrap
• Carbon Black UV stabilizers
• Water Filtration Parts

• Material: Rubber
• Shape: Round
• Exterior Diameter (in.): 4
• Weight: 0.1 lbs