This UltraZap heater casing with union is the replacement outer body for UltraZap pond heaters, sold without the heating element.

If the casing is cracked or the union is damaged but the element still works, keep the element and fit a new casing instead of replacing the whole heater. Pond heaters like these hold a steady temperature in a garden pond, a large fish tank or an aquarium-style koi setup, so a sound casing keeps the installation safe.

Good to know:
– Standard heater casing with union included
– Heating element not included — keep your original element
– Fit the new casing and reconnect the plumbing