Black & Decker PVF100 Replacement Filter for PHV100/PHV1800 18-Volt Pivoting Vac Fits pivoting hand vac only Black & Decker New Tool Filter PVF100 is the filter for PHV1800 GEN 1 Replacement filter works to deliver clean air exhaust Fits the PHV1810 and PHV1210 18-volt pivoting cordless hand vac Regular filter replacement helps improve vacuum performance Easy-open design removes the hassle of changing the filter Measures approximately 3 by 3 by 3-4/5 inches