OASE FiltoSmart 200 ThermoFit Water Tight Heater Pre-Insert Part# 48532

OASE FiltoSmart 200 ThermoFit Water Tight Heater Pre-Insert Part# 48532

This ThermoFit Pre-Insert part is necessary if you decide to add an internal heater to your existing canister filter. The required part creates a water tight seal for your heater to operate safely and prevent your canister for leaking.