Continue shopping “WR-28 WR28 WAVEGUIDE FILTER 57028-1078 MITEL P0884258” has been added to your cart. Product Price Quantity Subtotal × WR-28 WR28 WAVEGUIDE FILTER 57028-1078 MITEL P0884258 $109.11 WR-28 WR28 WAVEGUIDE FILTER 57028-1078 MITEL P0884258 quantity $109.11 Coupon: Apply coupon Update cart Cart totals Subtotal $109.11 Total $109.11 Proceed to checkout