$131.57 1″ HSG Sight Glass Polycarbonate Insert 1" HSG Sight Glass Polycarbonate Insert quantity Add to cart SKU: HSG-POLY-100 Category: Sanitary Sight Glass Tags: sanitary sight glass, sight glass Additional information Additional information Weight 0.054 lbs Dimensions 7.5 × 7.5 × 7.5 in Related products 1.5″ FKM Sight Glass Seal KIT $22.09 Add to cart 2″ Sight Glass – POLYCARBONATE $332.52 Add to cart 1.5″ NBR Sight Glass Seal KIT $6.56 Add to cart 2″ NBR Sight Glass Seal KIT $6.56 Add to cart