The 4839 Maintenance Kit contents include:

  • Water Panel 35
  • Scale Control Insert 4330
  • Water Distribution Tray 4331
  • Feed Tube and Compression Sleeve 4335
  • Orifice 4231
  • Drain Spud 4223
  • Inline Strainer 4004
  • Owner's Manual
  • BUY WITH CONFIDENCE This genuine replacement water panel was designed and manufactured in the U.S.A. by Aprilaire – the leader in indoor air quality solutions, to optimize the performance of your Aprilaire Humidifier Model: 600, 600A, 600M
  • PERFECT APRILAIRE FIT Water panel dimensions: 10" H x 13" W x 1.75" W
  • FOR OPTIMAL PERFORMANCE replace water panel annually
  • HUMIDITY FOR HEALTH Aprilaire Humidifiers can help you maintain optimal humidity in your home of 35% – 45% which has been shown to reduce the incidence of respiratory infections and symptoms related to allergies and asthma by minimizing the formation of bacteria and viruses, fungi, and dust mites. In addition, you’ll feel more comfortable while also preserving items in your home susceptible to damage from changing humidity or dry conditions

About Us

Our Beginnings

Same Day Supply is the product of a third generation family HVAC business. What makes our business unique from the rest? Integrity. Treating customers like family and making sure they received the best deal on the products we sell. We offer a wide range of home improvement products like filters, humidifiers, dehumidifiers, thermostats, repair parts, and much more.
What started as a small-town heating and cooling business has turned into an online business still driven by over 60 years of integrity, innovation and family values. Let us know how we can serve you.

How We Do Business

Same Day Supply has become an industry leader by offering great prices and treating customers with respect, caring and honesty. We operate our business on Christian principals and a minimum of 10% of company profits are donated directly to charities in support of orphans and widows in the local community and around the world. We only sell brand new, top-quality, name brand products from major manufacturers that we have installed and tested ourselves and we stand behind the effectiveness of every product that we sell.

We encourage you to ask questions and tap into our years of home improvement experience when making a decision about which item to purchase. When your health and comfort is at stake, purchasing the right product is an important decision! We're happy to help and we appreciate your business!