Plug and Grow
Jack chain: the traditional way to hang a reflector, a light or a carbon filter at a fixed height, strong and cut to length.
In StockPlug and Grow
£1.13
About Plug and Grow
Using it
Hang filters and anything that stays put from jack chain; use rope ratchets for lights you'll raise as the plants grow.
Related
Rope ratchets are under Hanging Equipment.