$922.19 6″ HSG Sight Glass Polycarbonate Insert 6" HSG Sight Glass Polycarbonate Insert quantity Add to cart SKU: HSG-POLY-600 Category: Sanitary Sight Glass Tags: sanitary sight glass, sight glass Additional information Additional information Weight 0.82 lbs Dimensions 7.5 × 7.5 × 7.5 in Related products 6″ NBR Sight Glass Seal KIT $24.05 Add to cart 6″ Sight Glass – POLYCARBONATE $711.72 Add to cart 2.5″ NBR Sight Glass Seal KIT $8.88 Add to cart 2.5″ Sight Glass – POLYCARBONATE $426.13 Add to cart