The S99010370 Hood Filter is compatible with hood filters from for Broan Nutone B08087922, B08087661, AP5331393, 2002603, 99010370, S99010370, B080879229, and you can confirm the size is appropriate based on the product model number. The S99010370 Grease Filter for Broan Nutone is made of aluminum for models PM250, PM250WW, NSPM250, PM390, PM390WW and NSPM390 series of Broan & Nutone range hoods. Constructed of durable aluminum For best performance, it is recommended that the aluminum mesh range hood filter be cleaned 1-2 months with warm water and degreasing solvent, then gently scrub the surface of the filter with a light brush. Then rinse with clean water and allow to air dry. Replace the range hood ventilation filters to ensure air circulation and to remove odors. It is highly recommended that the filters be replaced every 6 months (NOTE: Hand wash only). Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:Photo Color Material:aluminum Package Contents: 2 x Range Hood Filter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.