Product Search › 1" - 28 UN 1TP10028 Image 1 of 1 1" - 28 UN 1TP10028 $325.00 Part identification and A, B, C, and D dimensions listed within the product selection. Dimension reference image below. Quantity: Add To Cart Added! Part identification and A, B, C, and D dimensions listed within the product selection. Dimension reference image below.