United Paper Guide for RT18, RT26, RT37S, RT51S View cart “RT51S – Plastic Clear Paper Clamp for RT51S” has been added to your cart. $14.00 United Paper Guide for RT18, RT26, RT37S, RT51S quantity Add to cart Category: Replacement Parts Description Description Replacement paper guide for RT18, RT26, RT37S, & RT51S. Also Available at Office Depot Also Available at Staples Related products T14P – Safety Shield for T14P $28.00 Add to cart Rotary Cutting Blade for RT18, RT26 RT37S, RT51S $29.00 Add to cart RT18 – Plastic Clear Paper Clamp for RT18 $16.00 Add to cart T18P – Safety Shield for T18P $34.00 Add to cart