Loading the content...
Cart 0 items for $0.00

No products in the cart.

Ceramic Low Pressure Air Diffuser for Bubble Aerators

Return to Previous Page



bubblerBattery operated bubble aerators are an inexpensive way to keep bait alive in small containers. They are an entry point for anglers looking to purchase an inexpensive aerator to maintain small amounts of bait for short periods of time. They provide gentle aeration, but are inefficient because of non-uniformed bubble pattern and coarse bubble size in air stones. Cost is the primary factor in producing air stones that are packaged with your aerator. They sustain less bait per unit of air than aerators that produce smaller bubbles.

Most bubble aerators use AA, C, or D cell batteries, and operational costs can become expensive.


Low Pressure Ceramic DiffuserIf a bubble aerator is your decision, utilize a low pressure ceramic diffuser. KeepAlive® manufactures a low pressure ceramic diffuser with micro bubbles that dramatically improves the efficiency of a bubble aerator. They are expensive in comparison to air stones because of the intensive manufacturing process, but if a bubble aerator is your only option in maintaining fish, then purchase a high quality bubble aerator and couple it with the KeepAlive® KA975 Low Pressure Ceramic Diffuser. If properly maintained, your low pressure ceramic diffuser will provide for many years of efficient service.



Soak your diffuser for 10 minutes before attaching your air hose to the diffuser hose barb. This will reduce the dynamic wet pressure (DWP) and allow the diffuser to immediately start producing the fine micro-bubbles.


Remove the diffuser from the water and leave your bubble aerator operating. Place the diffuser face down on a paper towel. The aerator will push out any remaining water and debris that may have clogged the pores in the diffuser. This will ensure that the diffuser has dried cleanly and provide years of efficient service.


Related Products

Sale! The Original portable bait well pump Quick View

Portable Bait Well Pumps

"The Original" is our most popular KeepAlive® Oxygen Infusor®. The three silicone suction cups will attach to any smooth flat surface. It is ideal for any of our quality fiberglass live wells, portable coolers and built in recirculating live wells. Available with Rule® 500, 700, and 1100 pumps. All our pumps operate on 12 volts dc. The KA500 will maintain 10 pounds of bait while the KA1100 will maintain 40-50 pounds of bait. The 1-1/8" Nozzle of the KA1100 provides extremely gentle aeration.
$54.95$74.95 Select options
Quick View

Bow Pulpit – 33 Inch

This top quality fiberglass anchor pulpit is built to exacting specifications and will fit almost all bow configurations. Proudly Made in the USA The skirt all the way around the bottom of the pulpit can be cut to match the toe rail or angle of the deck on your boat in order to make a seamless appearing installation. NOTE: These are semi-custom items and are not in stock on the shelf. They are usually built and in the mold ready to take out, finish, and ship. Depending on the number of orders for the pulpits and other fiberglass items, shipping could take 1-2 weeks. 33in long x 11in wide at the bow x 3in thick
  • Tapers to approximately 7 1/2 wide at the end
  • Weight 18 pounds
  • Approximate thickness is 2 1/5 to 2 3/4 inches.
This item can not be shipped outside the Continental United States.  
$269.95 Add to cart
Captain Charlie's Rough Water 31" High Center Console Quick View

Captain Charlie’s Heavy Seas 31″ Center Console

Center Console 31 Inches High (RWCC02) Made in the USA with pride Captain Charlie’s™ Heavy Seas Products are not your everyday cookie cutter products that you see in many marine stores. They are high end, high quality, yet affordable products that have been missing from the market. We take great pride in the quality of all our products and Captain Charlie’s™ Heavy Seas leads the pack in quality construction. 31"H x 23"W x 22"D
$479.95 Add to cart
15 inch flush mounted pull up cleat Quick View

15 Inch Pull Up Cleat

  • The largest flush-mounted cleat available!
  • Made of marine grade 316 stainless steel.
  • Available in both stud mount and through-bolt versions.
  • Stud length is 4" on part # 115-15-S.
  • Each cleat is supplied with a waterproofing cup(shown).
  • Each cleat is shipped with a backing plate which also serves as the cut-out template.
  • Fasten with four 3/8" diameter screws (not included),weight = 16 pounds each.
Available with visible screw holes as PN 115-15 (load of 61,000 pounds), or with studs on the underside of base as PN 115-15-S (load of 31,000 pounds). Shipping weight 19# Proper maintenance consists of rinsing with fresh water regularly, and following each exposure to salt water. Stainless steel surfaces should be periodically wiped with a clean, soft cloth. Plastic surfaces may be cleaned with a mild, non-abrasive detergent solution, then rinsed with fresh water as necessary.  
$755.00$759.00 Select options
Sale! 30 Gallon White with Blue Interior Bait Tank Quick View

30 Gallon Bait Tanks

30 gallon live well (Shown in White with Blue Interior.) System Complete with KA500 Oxygen Infusor®. Dark blue interior reduces shadows on the tank wall to reduce stress. Bait stays healthier. Includes:
      • 21"W x 21"H Tank
      • KA500 Oxygen Infusor®
      • Recessed Drain
      • Black Handles
      • Air Control Center
      • Hold-Down Plate For KeepAlive Pump
      • 13" Hinged Lid with Twist Lock
      • Molded In Graphics.
      • Available both with and without KeepAlive KA4500 Oxygen Infusor® in White, White with Blue Interior, Insulated with Granite Exterior&Blue Interior, and Nite-Glo Green.
This Day Fishing Bait Tank with blue interior will keep bait calmer and healthier by reducing stress Continental US shipping on any 30 gal. tank, $29.78  
$249.95$429.95 Select options
Lewmar Pro-Fish Anchor Windlass Quick View

Windlass Service, Spares and Parts

Windlass Service, Spares and Parts We carry parts for Lewmar, Horizon, Sprint, Simpson Lawrence, James Neilssen, Maxwell, and Quick. If you need parts or service on your windlass, call us at 800-745-0765, Monday - Friday 8 am - 5 pm EST.
Poli Strip Liquid Quick View

Poli Strip Liquid

32oz. Poli Strip Liquid Concentrate is formulated for the removal of Poli Glow. Rubbing compound will not remove Poli Glow!! If Poli Glow has started to break down and is coming off, you may have to remove Poli Glow with Poli Strip (see 'More Information' for removal of Poli Glow.) Reapply 2 to 3 coats of Poli Glow to the area to restore shine.  
$22.95 Add to cart
Sale! Poli Grit Kit Quick View

Poli Grit Kit

Our Poli Grit Kit will give you a high gloss, easy to clean, non slippery surface.  Poli Grit is used to seal non-skid or textured surfaces. It will make stains and footprints easy to wash off with just soap and water. Poli Grit Kit is supplied with two bottles.  Bottle A which has polypropylene pellets mixed with a sealer.  Bottle B is a sealer only.  You're required to roll on one coat of Bottle A and then 2-3 coats of Bottle B. If you need only one kit order the Kit. You can also order additional Bottle A or Bottle B if needed for your project. Depending on the surface to cover and how porous it is, a kit should cover between 10 - 20 square feet. Includes roller handle, pan, two short nap roller covers, and Part A and Part B Poli Grit. Perfect for decks, gunwales, stair treads, fishing platforms or any fiberglass part of the boat that needs to be non-skid.
$19.95$39.95 Select options
timers and switches for aerator Quick View

Live Well Aerator Timers

Our Aerator Controls are built for the fishermen that need to conserve battery power while still keeping their bait or fish alive in the well. These units can be used in fresh or salt water applications and are priced economically. The combination off/on switch(A-0-LWS-T) cycles the aerator pump on for appx. 30 seconds every 3.5 minutes. Continuous run mode can also be used. An operation ID plate is supplied with the unit The variable control aerator timer(A-0-LWS-V) cycles on for 30 seconds and the off cycle is variable from 0 to 5 minutes. This unit also has a continuous run mode and is supplied with a control setting ID plate. All our units have up to a 10 amp output.
LED Flush Mounted Bow Light Quick View

LED Combination Pop-Up® Bow Light

Navigation Light - LED Bow Light - 210-M FEATURES: USCG approved 2 nautical miles. The only Pop-Up® LED light on the market. Keeps deck free of protruding lights, folds down flush with deck when not in use. Made of marine grade 316 stainless steel. An optional plastic cup prevents unwanted water runoff below deck. INSTALLATION Drill a 3 1/2" diameter hole using a hole saw. Fasten with three #10 screws (not included). DIMENSIONS Above Deck Length = 4.43" Width (at the widest point)= 4.0" Height = 2.15" Below Deck Depth = 2.65" Proper maintenance consists of rinsing with fresh water regularly, and following each exposure to salt water. Stainless steel surfaces should be periodically wiped with a clean, soft cloth. Plastic surfaces may be cleaned with a mild, non-abrasive detergent solution, then rinsed with fresh water as necessary.
$177.02 Add to cart
Back to top