$1.00 Retrofit (Blue Square Base) Size Choose an option40mm50mm65mm80mm100mm150mmClear Retrofit (Blue Square Base) | 22FC quantity Add to cart SKU: N/A Category: Retrofit Fire Collars Additional information Additional information Size 40mm, 50mm, 65mm, 80mm, 100mm, 150mm Related products Retrofit (Blue Round Flange) | 22FCS $1.00 Select options Retrofit Fire Collar (Standard) | 22RF $1.00 Select options Jumbo Retrofit Fire Collar | 22RF-LP/HP $1.00 Select options CXL Gas Fire Collar | 22GAS $1.00 Select options