$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″ NBR Sight Glass Seal KIT $6.56 Add to cart 6″ 316L In-Line Sight Glass CxC No Shield $745.61 Add to cart 6″ Sight Glass – POLYCARBONATE $711.72 Add to cart 4″ NBR Sight Glass Seal KIT $8.88 Add to cart