Ever burned your hand under hot water? Hurts, doesn’t it? Imagine being a hot water tank.OK, OK, let’s not feel too empathetic for an inanimate object – but just like most units of equipment, too much heat or water exposure can lead to breakdowns of its materials. There’s a Companion product for that. The Magnesium Anode by Companion is your water heater warrior, protecting the hot water units from breaking down internally. Designed for the suburban thrill-seekers, they’re ideal for hot water tanks in your motorhome, RV or caravan. In attracting corrosive elements present in the water, the anode helps to avoid corrosion and therefore prolong the life of your hot water tank. With DIY installation, protect your plumbing from premature failure with the Companion Magnesium Anode - your handy water heater protector. Protects water heaters Improves water quality Designed for suburban RV water filters DIY installation 241mm long External Dimensions:24.1L x 2.7W x 2.7H cm | Anode 22L x 1.6W x 1.6H cm | 3/4" NPT Thread Packed Dimensions:31L x 6W x 2.5H cm Material: Magnesium Tests: Check Annually | Replace when degraded more than 75% Weight:0.160 Kg