1 set Printer Spare Parts include : 1.3 meters 6 line uV tube 3mm x1.8mm 6 pcs uV square head ink damper 6 pcs copper screw with oring Description: 1.6 color ink damper for Epson R330 R290 T50 L800 R1390 UV printer 2. Function: ink filtering. 3. PP material Advantage: 1. Corrosion resistant, be suitable for Both Solvent/ Eco Solvent and water based ink 2. It can balance the ink supply and guarantee the high speed of printing without break. 3. Good quality which is as same as the original damper. 4. Can filter the ink well. 5. Protect your printer head from cogging.