The permatron srew-in plastic mount clip are sturdy black plastic mount clips that make it simple to fasten netting or filters (3/8" grommet) to equipment. A movable tab that opens and closes on the clip (which comes with two #6-3/4" hardened steel self-tapping screws) allows for secure installation and simple cleaning removal.
Available Mount Kits:
Mount Kit S12 - Single Height - 12 mounting clips
with screws
Mount Kit S100 - Single Height - 100 mounting clips
with screws
Mount Kit D12 - Double Height - 12 mounting clips
with screws
Mount Kit D100 - Double Height - 100 mounting clips with screws
MagnaMount® - Single Height - 12 neodymium magnet mounting clips
Permatron HailStop Hail Guard is a rigid polypropylene netting designed to protect HVAC equipment from hailstorms and debris. It features 3/8" diamond-shaped openings, preventing flattened fins from impairing operation, reducing air flow, and reducing power consumption.
In addition, it can be layered behind PreVent® Model U Equipment Protection filter for protection of airborne debris from dust particles to large hailstones. Some of the added benefits of our hail guard netting include:
- UV Protected
- Rot Resistant
- Weather Resistant
- Abrasion and Corrosion Resistant
- Lightweight and easily cleaned
BUILDINGS magazine selected HailStop® Hail Guard Netting as an HVAC Fix 2015 Money-Saving Product winner. HailStop Hail Guard Netting is part of an elite group of products showcased in the magazines June 2015 issue.
Measuring & Installing HailStop Hail Guard Netting

Permatron HailStop Hail Guard are made in the USA. Permatron has been an air filtration manufacturer since 1957.
The HailStop® polypropylene netting is manufactured by Permatron in Illinois. The hail guard kits are assembled and packaged at the Illinois plant.