AIR FILTER COMPATIBLE WITH: BLOWER MODELS: PB 403 PB 403H/T PB 413 PB 413H/T/HT PB 500 PB 500H/T PB 603 PB 611 PB 620ST PB 620 PB 650 PB 650H/T PB 651H/T PB 755SH/ST 104.5X66X34 ECHO - KIORITZ - HOKKAIDO Code:046611 Original code:A226-00031 A226- 000032