Check the listing for details. Python PRO-CLEAN Gravel Washer and Siphon Kit Vac Mini/Small/Medium/Tall/Lg/XLg. Condition: New. Listed at 13.97 USD. Pro-Clean Graver Washer and Siphon Kit from Python Products. Choose from Mini, Small, Small-Tall, Medium, Large or XLarge sizes. The Python Pro-Clean Gravel Washer & Siphon Kit is perfect for the beginner and experienced hobbyist alike. It effectively separates and removes debris from your aquarium while you perform routine water changes. The Pro-Clean is constructed using only the highest quality materials. Mini size is ideal for fish bowls and small aquariums up to 10 gallons in size. 1" x 6" Tube / 6 ft HoseSmall size is ideal for aquariums 10-20 gallons in size. 1" x 10" Tube / 6 ft HoseSmall/Tall size is ideal for nano aquariums. 1" x 20" Tube / 6 ft HoseMedium size is ideal for aquariums up to 20 gallons in size. 2" x 12" Tube / 6 ft HoseLarge size is ideal for aquariums 20-55 gallons in size. 2" x 16" Tube / 6 ft HoseThe X-Large size is ideal for aquariums over 55 gallons in size. 2" x 24" Tube / 6 ft Hose