Anti-Siphon Check Valve (10-020)

The anti-siphon check valve protects aquarium and equipment from siphoning due to power interruption or separation of the air line from the air pump. It also allows placement of the air pump below the level of the water (placed next to or below the tank).

Features Include:

• Leak-proof for standard aquarium applications
• High-grade silicone valve, resistant to breakdown due to heat and ozone
• Colored valve retainer to insure proper installation
• Inexpensive
• Long-life
• Made entirely in the U.S.A.
• Less restrictive air flow than competitors

Apollo Air Stone (10-050)

The ApolloStone is simply the best air stone available for both fresh and saltwater aquariums.

Consider these features:

• Long-lasting - will last many years with proper care.
• Very simple to  clean - just loosen knurled end nut and turn the rings until they rotate freely, then tighten.
  There is no need to remove the air stone from the airline or even take it out of the aquarium!
• Offers very little resistance to air flow.
• Weighted stainless steel end nut keeps the air stone at the proper depth.

For fresh water aquariums, clean the ApolloStone approximately every six months. For salt water applications, clean about once a month.