Hasler Ink Cartridge # WJ20INK-1 for WJ20 Postage Meters WJ20INK-1 c Hasler Ink Cartridge is a direct replacement for Hasler Part # WJ20INK-1 (3300262X) Use with Hasler WJ20 Postage Meters Red Ink Cartridge, 1 per box Total Imprints 2,500 or 12 Months Free Same Day Shipping by PostageInk!