Compatible replacement for HP RM1-4579. Page Yield or Volume @ 5% coverage will be approx N/A. This is a Fusers & Accessories. Prices exclude VAT and delivery. All products are covered by a 2 year warranty and next day replacement service. Name and numbers are for indicative purposes only. All products are non-original/non-OEM. FITS: P4014/P4015/P4515 series