$94.03 1.5″ HSG Sight Glass Polycarbonate Insert 1.5" HSG Sight Glass Polycarbonate Insert quantity Add to cart SKU: HSG-POLY-150 Category: Sanitary Sight Glass Tags: sanitary sight glass, sight glass Additional information Additional information Weight 0.05 lbs Dimensions 7.5 × 7.5 × 7.5 in Related products 2″ FKM Sight Glass Seal KIT $22.09 Add to cart 1″ Sight Glass – POLYCARBONATE $276.41 Add to cart 3″ NBR Sight Glass Seal KIT $8.88 Add to cart 2.5″ Sight Glass – POLYCARBONATE $426.13 Add to cart