Seaira Global W919 Carbon Filter Watchdog 900 3 Pack

Product Description

The SEAIRA GLOBAL W919 is a carbon replacement filter designed for use with first-generation Seaira Watchdog 900 crawl space dehumidifiers. It installs behind the pre-filter in the filter housing and replaces the standard MERV-8 filter that ships with the unit. The carbon media removes airborne dirt, dust particles, and odors from air passing through the dehumidifier. The W919 is sold as a three-pack, providing enough supply for approximately three years of service under the manufacturer-recommended annual replacement interval. This filter is not washable and must be discarded and replaced when spent.

This filter is intended for crawl space dehumidifier applications where odor control is a priority alongside particulate removal. Crawl spaces frequently accumulate musty odors from soil off-gassing and moisture intrusion. The activated carbon media addresses those odors while also capturing dust and debris that would otherwise pass through or load the dehumidifier coil. It is installed by HVAC technicians, indoor air quality contractors, and experienced service professionals maintaining crawl space encapsulation systems.

Key Features

• Activated carbon media removes odors as well as dust and dirt particles
• Replaces the factory-included MERV-8 filter in first-generation Watchdog 900 units
• Mounts behind the pre-filter in the existing filter housing — no modifications required
• Annual replacement interval keeps maintenance straightforward
• Sold as a three-pack for multi-year supply
• Non-washable design eliminates reuse guesswork

Compatibility

Designed for use with Seaira first-generation Watchdog 900 crawl space dehumidifiers as a direct replacement for the included MERV-8 filter.

Installation Notes

Disconnect power to the dehumidifier before servicing the filter housing. The W919 seats behind the pre-filter — confirm correct layering order before closing the housing. No tools are typically required for filter replacement on crawl space dehumidifiers of this type. Follow the manufacturer annual replacement recommendation and dispose of used filters rather than attempting to wash or reuse them.

Technical Specifications

• Filter Media: Activated carbon
• Washable: No
• Recommended Replacement Interval: Approximately once per year
• Quantity per Pack: 3 filters

Standard Information

• Brand: SEAIRA GLOBAL
• Manufacturer Part Number: W919