3 - 1212 3-slot adjustment and 32mm acetal roller bearing. Lockwood use the compatible 3-4170 roller

use the compatible 3-4170 roller unit

The included key ensures you can lock the window in place

consistent door movement while preventing derailment and misalignment

cost-effective screen door hardware that maintains smooth operation season after season

3 - 1212 3-slot adjustment and 32mm acetal roller bearing. Lockwood use the compatible 3-4170 rollerPlastic carriage with 3 slot adjustment and 32mm acetal roller bearing. Compatible with Dowell and AMP door hardware systems. Replace worn rollers with part 3 4142. Ideal for sliding door maintenance and repairs on residential and commercial installations. supports up to 35kg