Reusable kit that helps feed treatment chemicals directly into central heating systems. For 500ml and 1Ltr bottles and 310ml concentrate tubes from all major brands including Fernox, Sentinel, Flomasta and No Nonsense. Bottles can be filled through ½"...

Rust-Oleum Dark grey Multi-surface Magnetic Primer 0.5L.Apply this magnetic primer from Rust-Oleum to interior using a brush or roller to prepare the surface for painting. It takes 90 minutes to dry and will cover 1 m² per litre on average.