Ryanfire SL-H Collar

Ryanfire SL-H (half) Collars have been specifically designed to maintain the fire resistance of penetrations through firewalls where the penetrations are tight up in a corner where traditional collars would not fit or be suitable . The profile of the half collar makes it uniquely ideal for these tricky situations. The SL-H Collars consist of a high quality stainless steel case lined with a highly reactive graphite infused material. Upon exposure to heat the SL-H Collar will quickly and effectively close any openings that may form due to the melting away of services.