・Please refrain from price negotiations (will block). ★ 2 bags of high-performance septic tank deodorizer (Sana) ※ 1 bag: 20g x 20 packets = 400g I've used Mitagen M and Aules, but I think this has the best deodorizing effect (personal opinion). I feel like the once-a-month type from another manufacturer barely works towards the end. This type is flushed down the toilet once a week. The bag dissolves, so flush it down as is without opening. ★ It's much cheaper to do it yourself than to hire a professional. Using one bag a week costs about 400 yen a month. Please compare it to your own contract. ★★ Will be sent via Yu-Packet Post. Please note that the envelope may be wrinkled. #SepticTankSana 2 bags Septic tank function recovery agent High-performance deodorizer Odor Smell Offensive odor prevention Sana SANA