OEM-matched MERV 11 filtration for Leizig R32 commercial dehumidifiers — no tools required.
Leizig SKU 31800043 is the manufacturer-matched MERV 11 replacement filter for the Leizig LG195, LG228, and LG335 R32 dehumidifier series. Designed for tool-free field swap to keep airflow, coil efficiency, and moisture-removal capacity at spec.
The Leizig MERV 11 replacement filter (SKU 31800043) is the factory-matched intake filter for the Leizig LG195, LG228, and LG335 commercial dehumidifier series — all R32-refrigerant units built for licensed cannabis and hemp cultivation environments. MERV 11 is rated by ASHRAE Standard 52.2 to capture at least 85% of particles in the 3.0–10.0 micron range and at least 65% of particles in the 1.0–3.0 micron range, covering dust, pollen, mold spores, and fine particulate that a commercial grow room generates consistently. That particle load is higher than most HVAC applications because of transpiration humidity, organic debris, media dust, and the concentrated air circulation that cultivation canopies produce.
Running the correct OEM filter keeps the evaporator coil clean, sustains rated CFM through the unit, and protects the refrigerant circuit from particulate fouling — all of which directly affect how many pints per day the unit actually pulls versus what the nameplate says.
This filter is matched to three units in the Leizig R32 dehumidifier line. The LG195 runs at 195 pints per day with 600 CFM airflow at a 7.0 pints/kWh efficiency rating. The LG228 removes 228 pints per day at 520 CFM with a 6.9 pints/kWh rating and is available in dual-voltage 208–277V and 240V single-phase configurations. The LG335 steps up to 335 pints per day at 900 CFM and 6.8 pints/kWh, designed for larger commercial rooms. All three models use the same filter form factor, making this a single SKU for facilities running multiple units across those three tiers.
All Leizig units in this series include RS485 (MODBUS) communication for integration with commercial environmental controllers, meaning their runtime data — and the filter wear that runtime drives — is often trackable through your existing VPD or climate automation system. A clogged filter shows up as reduced moisture removal before it shows up as anything else; catching it on schedule prevents that efficiency loss.
Leizig recommends inspecting filters every 30–60 days on units running in active cultivation environments. Replacement cadence depends on room load: high-transpiration canopies, media dust from top-dresses or substrate handling, and frequent room traffic all shorten filter life relative to a low-density propagation space. A visually loaded filter or any measurable drop in the unit's pint-per-day output is a practical trigger for immediate swap regardless of schedule.
Installation is tool-free. The filter accesses through the unit's designated panel — no fasteners, no disassembly. Keeping a spare filter on-site means a maintenance change doesn't require a service window or a parts lead time. For facilities running multiple Leizig units across the LG195–LG335 range, stocking this single SKU covers all three models.
A dehumidifier coil that accumulates particulate has to work harder to move the same mass of air across its evaporator surface. That means longer run cycles, higher compressor load, and degraded pint-per-day output — without any visible failure mode until the unit either falls behind on humidity or triggers a fault. In tightly controlled VPD cultivation, even a modest drop in dehumidification capacity during lights-on peak-transpiration windows can push canopy vapor pressure into ranges that increase disease pressure.
MERV 11 is the manufacturer-specified rating for these units because it balances meaningful particulate capture against airflow resistance — a higher-rated filter in a unit designed around MERV 11 would increase static pressure and reduce CFM. Using the correct OEM-specified filter is the straightforward way to keep the unit operating as designed. This filter is stocked as a standard consumable through HSC and is available nationally to licensed operators across the U.S.
| SKU | 31800043 |
| Brand | Leizig |
| Filter Rating | MERV 11 (ASHRAE 52.2) |
| Compatible Models | Leizig LG195, LG228, LG335 |
| Refrigerant Platform | R32 series |
| Particle Capture – 3.0–10.0 µm | ≥85% |
| Particle Capture – 1.0–3.0 µm | ≥65% |
| Installation | Tool-free field replacement |
| Inspection Interval (Leizig recommendation) | Every 30–60 days in active grow environments |
| Catalog Category | Accessories / Cultivation |
Yes. SKU 31800043 is the manufacturer-matched filter for all three models in the Leizig R32 series. Facilities running multiple units across these tiers can stock a single SKU for all of them.
Leizig recommends inspecting filters every 30–60 days in active cultivation environments. Replacement frequency depends on room load — high-transpiration canopies, media dust, and heavy air traffic all accelerate filter loading. A visible drop in pint-per-day output is a practical indicator that a swap is overdue regardless of the calendar.
A loaded filter restricts airflow across the evaporator coil. Less CFM means less air-to-coil contact, which directly reduces how many pints per day the unit can extract. In a tight VPD environment, that degradation can push canopy vapor pressure outside your target range before any fault code appears. Regular filter changes are the lowest-cost way to maintain rated performance.
These units are designed around MERV 11 as the specified filter rating. Installing a higher-rated filter increases static pressure and reduces CFM through the unit. The result can be lower moisture removal capacity, not higher — the opposite of the intended outcome. Use the OEM-specified rating.
Request a quote through Hydro Supply Co. HSC supplies licensed cannabis and hemp operators nationally. Turnaround and lead time details are confirmed at the time of order.
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