Rolltrak Sliding Door Guide 20mm SKU: 210349 MODEL: R1631 Error. try again later You've successfully joined the club $ 8 .66 each Available on orders $50 to $1500. More info × Mitre 10 SAvailable at selected stores. Check your local store for details Variants Nylon guide for cavity sliding door. Features and benefits 20mm guides. Set of left and right. Easy installation. Suits internal cavity doors.