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

Captain Charlie's Rough Water 27 inch high center console Quick View

Captain Charlie’s Heavy Seas 25″ Center Console

Center Console 25 Inches High (RWCC01) 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™ Rough Water leads the pack in quality construction. 25"H x 21"W x 16"D
$449.95 Add to cart
Poli Glow Boat Polish Kit Quick View

Poli Glow Boat Polish Kit

Our Poli Glow Boat Polish Kit includes a 32oz. Poli Prep, 32oz. Poli Glow, **NEW & IMPROVED** Mitt Applicator, and Scrub Pad with Handle.  This complete Kit includes enough products for up to a 30-32' Boat or RV. Poli Glow is a proven concept in boat polish and is NOT a wax.  It is easily applied.  It wipes on without the need for rubbing or buffing.  It will not wash off with soap and water and lasts up to 12 months! Poli Glow will work on the following: Boats, RV's, Canoes, Motorhomes, Painted Fiberglass, Painted Metals, Rubber and Vinyl Lettering.  
  • PoliGlow is NOT a Wax
  • PoliGlow Will NOT Wash Off With Soap and Water
  • Easy Application - Wipe on, No rubbing or Buffing
  • Lasts for over 12 months
  • NEVER Wax Again
  • PoliGlow is NOT a Wax - It is a Clearcoat Which Has a Gloss Level More Than 5 Times That of Wax and Lasts Over 12 Months, Even in the Florida Sunshine!
$65.95 Add to cart
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
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
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
Poli Prep Cleaner Concentrate Quick View

Poli Prep Cleaner Concentrate

Poli Prep Cleaner Concentrate is designed to prep the surface prior to using Poli Glow.  It will remove wax, light stains, and light oxidation.  Poli Prep is a concentrate.  Do not use full strength. Dilute three parts water to one part Poli Prep. Wet surface with water. Apply Poli Prep with trigger sprayer and scrub vigorously. If you have heavy oxidation or a darker colored surface, it’s best to use Poli Ox along with the Prep to insure that all oxidation has been removed.
$19.95 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! Pull Up Mooring Cleat 209 Series Quick View

Pull Up Mooring Cleat 209 Series

  • Sealed base eliminates the need for a waterproofing cup, water can be drained through a fitting at the bottom of the unit.
  • Can be converted to a lifting cleat by inserting a connecting rod in the base of the unit and attaching the rod to the bow eye.
  • Made of marine grade 316 stainless steel.
  • Available in four sizes: 4 1/2", 6", 8" & 10".
  • 10" version is available in both through bolt (visible screw holes) and stud-mount (no visible screw holes).
    • Each cleat is shipped with a backing plate which also serves as the cut-out template..
    • Screws are not included 209-4 requires quantity (4) 3/16" screws 209-6 requires quantity (4) 1/4" screws 209-8 requires quantity (4) 1/4" screws 209-10 requires quantity (4) 5/16" screws
$69.09$253.69 Select options
Sale! 14 Gallon KeepAlive Bait Well System, White with Blue Interior, Complete Quick View

14 Gallon Bait Tanks

14 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:
  • 15.5"W x 15.5"H x 20"L Tank
  • KA500 Oxygen Infusor®
  • 3 Built In Trays
  • Drain
  • Black Handles
  • Air Control Center
  • Hold-Down Plate For KeepAlive Pump
  • 13" Hinged Lid with Twist Lock
  • Molded In Graphics. Available in 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 $28.16
$289.95$399.95 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.
Back to top