S8 Series foam filter?? 3 pack 1 3/8"x 1 3/8" OEM# 33916</br></br>Product Description</br></br>S8 Series foam filter?? 3 pack 1 3/8"x 1 3/8" OEM# 33916</br><br/>http://www.amazon.com/gp/product/B006GESQYQQe