Leizig Duct kit (R410a Dehumidifier for LG228, LG335)

What This Kit Is

The Leizig Duct Kit (SKU 31800018) is an OEM accessory designed and sold by Leizig specifically for use with their LG228 and LG335 commercial dehumidifiers. It provides the hardware needed to connect ductwork to either unit for a managed supply or return air path — enabling targeted humidity extraction rather than simple open-air recirculation.

The LG228 and LG335 are R410a refrigerant-cycle dehumidifiers purpose-built for commercial cultivation environments. The LG228 removes 228 pints per day at 6.9 pints/kWh with 520 CFM of airflow. The LG335 steps up to 335 pints per day at 6.8 pints/kWh while pushing 900 CFM. Both units support ceiling-suspended, wall-mounted, floor cabinet, and freestanding installation configurations — and ducted deployment is a natural extension of overhead mounting in sealed grow rooms.

Because this kit is model-specific, fitment is confirmed for both the LG228 and LG335. Do not use this kit with other Leizig models (LG195, LG508, LG880) without confirming compatibility directly — duct collar geometry varies across the lineup.

Who Needs This

This kit is relevant to operators running LG228 or LG335 units in any installation where unmanaged free-blow is insufficient. That typically means sealed flower rooms with defined canopy zones where humidity stratifies, multi-bay veg facilities where you need to direct dry air to a specific area, or builds where the dehumidifier is positioned outside the primary grow space and dry air needs to be ducted in.

Ceiling-suspended installations benefit most from ducting. When a unit is hoisted overhead and connected to supply and return duct runs, you can direct dehumidified air precisely across the canopy rather than relying on the unit's native throw pattern. For the LG335 in particular — pushing 900 CFM — ducting turns that airflow into a controlled distribution tool instead of a point-source exhaust.

If your facility's electrical or mechanical design places the dehumidifier in a utility chase, hallway, or mechanical room adjacent to the grow space, ducting is not optional — it's required. This kit provides the OEM interface to make that connection correctly without field-fabricated adapters that can create pressure loss or fitment failures.

Why OEM Fitment Matters Here

Commercial dehumidifiers in the 228–335 pint/day class move significant air volume at low static pressure. Poorly fitted duct connections — mismatched collars, improvised adapters, gaps at the transition — create turbulence and pressure loss that degrades effective airflow delivery. On a unit rated at 520 or 900 CFM, even a moderate static pressure increase at the connection point can measurably reduce moisture removal performance.

The Leizig-supplied duct kit is dimensioned and toleranced for the LG228 and LG335 housings. That matters in a 24/7 continuous-duty application where vibration and thermal cycling are constant. A tight, manufacturer-spec connection holds its seal over time; a field-fabricated workaround may not.

From a maintenance standpoint, using the OEM kit also keeps the installation clean for filter servicing and any warranty-related inspection. The Leizig lineup's MERV-rated filtration system requires periodic access — a properly fitted duct connection that follows the manufacturer's intended geometry doesn't obstruct that access.

How This Fits a Commercial Build

In a typical ducted dehumidifier installation, the unit pulls humid room air through a return-air connection, passes it across the refrigerant coil (condensing moisture), and exhausts the drier air back into the space through a supply duct. The duct kit provides the physical interface between the unit's inlet/outlet ports and your duct run — whether that's flexible insulated duct, hard-pipe sheet metal, or a combination.

For operators building out new rooms or retrofitting existing ones, the order of operations is: confirm your LG228 or LG335 mounting position and suspension hardware, size your duct run to the unit's CFM rating without introducing excessive static pressure, and use this OEM kit to make the transition at the unit itself. Your HVAC contractor or mechanical installer should have the unit spec sheet and this kit on hand before rough-in.

If you're speccing both the dehumidifier unit and this accessory at the same time, HSC can coordinate both through a single quote request. Confirm your model (LG228 or LG335) and your installation configuration when you reach out — that's the information needed to make sure the right accessory ships with the right unit.