" The USA Lab Fused Tri-Clamp Sight Glass are one of the strongest sight glasses on the market! With the stainless steel sight glass being fused into the metal, it allows for a pressure rating of up to 300PSI. Tem
" The USA Lab Fused Tri-Clamp Sight Glass are one of the strongest sight glasses on the market! With the stainless steel sight glass being fused into the metal, it allows for a pressure rating of up to 300PSI. Tem