It’s sold per linear meter. The producers recommend the usage of 1 meter for washing machines with 23 kg loading capacity and 2 meters for washing machines with loading capacity bigger than 23 kg

Models and producers:

IMESA – D2W 30, D2W 55, LM 11, LM 14, LM 18, LM 23, LM 30, LM 40, LM 55, LM 6, LM 70, LM 8, LM 85, RC 11, RC 14, RC 18, RC 23, RC 30, RC 40, RC 55, RC 55 IM8, RC 6, RC 70, RC 8

WHIRLPOOL - 851220801000 (AGB208WPRC), 851220901000 (AGB209WPRC), 851221001000 (AGB210WPRC), 851221101000 (AGB211WPRC), 851221201000 (AGB212WPRC), 851221301000 (AGB213WPRC), 851221801000 (AGB218WPRC), 851221901000 (AGB219WPRC), 851223001000 (AGB230WPLM), 851223101000 (AGB231WPLM), 851223201000 (AGB232WPLM), 851223301000 (AGB233WPLM), 851223401000 (AGB234WPLM), 851223501000 (AGB235WPLM), 851223601000 (AGB236WPLM), 851223701000 (AGB237WPLM), 851223801000 (AGB238WPLM), 851224001000 (AGB240WPLM), 851224101000 (AGB241WPLM), 851225101000 (AGB251WPLM), 851225201000 (AGB252WPLM), 853202401000 (ALA024), 853203901000 (ALA039), 853204301000 (ALA043), 853204401000 (ALA044)

OEM codes:
IMESA- 3940ANEORING

WHIRLPOOL – 483286008466