Leizig Filter MERV13 (R32 Dehum for LG508, LG880)

What This Filter Is

The Leizig MERV-13 replacement filter (SKU 31800035) is the OEM air filter designed specifically for the R32 refrigerant variants of the Leizig LG508 and LG880 commercial dehumidifiers. Both units share a 31.8″ × 22.3″ × 1″ filter housing and are spec'd from the factory to run either a MERV-8 or MERV-13 filter — this SKU is the MERV-13 tier, the higher-grade option for facilities that need the added particle capture.

MERV-13 pleated media captures up to 95% of airborne particles passing through the unit, including mold spores, bacteria, dust mite debris, pollen, and microscopic allergens that a MERV-8 filter allows through. For production flower rooms running 24/7 in sealed environments, the difference in microbial load reaching the canopy is real. This is not a washable filter — MERV-13 fine-fiber media loses efficiency if cleaned; replacement is the correct maintenance protocol.

Who This Is For

Any licensed cannabis or hemp operator running Leizig R32 LG508 or LG880 units needs this filter on the shelf before the current one is due. The LG508 runs at 508 pints/day with 1,500 CFM airflow; the LG880 moves 2,250 CFM while pulling 880 pints/day. At those airflow volumes, a loaded filter becomes a real restriction — reduced airflow across the evaporator coil directly cuts dehumidification capacity and pushes runtime up, which shows up on the power bill.

Multi-room facilities with multiple LG880 units on 480V three-phase service should track filter intervals per room, not per facility. Flower rooms with dense canopies and high transpiration loads will load filters faster than drying or veg rooms. Keeping a small supply on-site means a filter swap doesn't become a production delay.

Key Maintenance Facts

Leizig recommends inspecting filters every 30–60 days under normal commercial cultivation conditions. In heavy flowering rooms with dense canopies and elevated particulate loads, inspections closer to the 30-day mark are appropriate. Replace when visibly loaded or when airflow across the unit feels reduced — do not attempt to vacuum or wash MERV-13 media, as doing so damages the fiber structure and can re-introduce captured particles into the airstream.

The LG508 and LG880 are designed for quick field replacement with no tools required. Filter access does not require partial disassembly of the unit or any disconnect of electrical or refrigerant lines. A routine swap takes a few minutes and restores the unit to rated performance. Keeping this SKU stocked means the only variable in your maintenance window is having the part on hand.

How It Fits a Commercial Build

The LG508 and LG880 are ceiling-mount, wall-mount, or hoist-configured units designed for permanent installation in sealed production rooms. They run continuous duty on dedicated commercial electrical service — the LG508 on 208–277V or 240V single-phase, the LG880 on 480V three-phase. At those operating profiles, unplanned downtime for a maintenance item as simple as a filter is avoidable with basic parts planning.

Both units ship with RS485 MODBUS compatibility and remote dry contact input, so they integrate directly into facility environmental controllers. If your control system is logging runtime hours or airflow data, that data can drive filter replacement scheduling without manual inspection. For facilities running multiple Leizig units across different rooms, ordering replacement filters in quantity through HSC reduces per-unit cost and ensures you're working from the correct OEM SKU rather than a generic aftermarket substitute that may not match housing dimensions or media grade.