The Sparks Overland 3” (75mm) Heater Tent Adapter lets you securely zip your heater duct into any zippered tent door or window — no hacks, no gaps.
Round ducting was never designed to work with zippers. We fixed that. Our slot-based adapter design captures the zipper for a tight, secure seal, keeping cold air out and heat where it belongs.
No more separating zippers. No more cold spots. Just a clean, reliable tent connection.
Why It Works
Designed specifically for zippered tent doors & windows
Slot system locks into the zipper for a tight seal
