ข้อต่อตรงลด PP-R

25x20mm (3/4"x1/2"), 32x20mm (1"x1/2"), 32x25mm (1"x3/4"), 40x20mm (1-1/4"x1/2"), 40x25mm (1-1/4″x3/4″), 40x32mm (1-1/4″x1″), 50x20mm (1-1/2″x1/2″), 50x25mm (1-1/2″x3/4″), 50x32mm (1-1/2″x1″), 50x40mm (1-1/2″x1-1/4″), 63x25mm (2″x3/4″), 63x32mm (2″x1″), 63x40mm (2″x1-1/4″), 63x50mm (2″x1-1/2″), 75x63mm (2-1/2″x2″), 75x32mm (2-1/2″x1″), 75x40mm (2-1/2″x1-1/4″), 75x50mm (2-1/2″x1-1/2″), 90x63mm (3″x2″), 90x75mm (3″x2-1/2″), 90x40mm (3″x1-1/4″), 90x50mm (3″x1-1/2″), 110x63mm (4″x2″), 110x75mm (4″x2-1/2″), 110x90mm (4″x3″), 110x32mm (4″x1″), 110x50mm (4″x1-1/2″), 160×110(6"x4")