This item is a special order from the manufacturer. Your order will typically ship in 5 to 20 business days.
Hole plug model 400
4408, APR4408
This part may fit other models. Please contact us if you require additional assistance.
| Ref. | Image | Part No & Description | Price | |
|---|---|---|---|---|
| apr400A - Aprilaire Humidifier Unit Auto Quantity: 1 View Part Info | $203.99 | In stock |
| Ref. | Image | Part No & Description | Price | |
|---|---|---|---|---|
| 13 |  | APR56 - Humidistat For Autotrac Has Outdoor Temp Quantity: 1 View Part Info | $183.62 | In stock |
| 14 |  | apr4305 - Gasket Automatic Humidifier Control View Part Info | $7.80 | In stock |
| Ref. | Image | Part No & Description | Price | |
|---|---|---|---|---|
| 1 |  | apr45 - Wick/filter For Aprilaire Aftermarket Quantity: 2 View Part Info | $34.84 | In stock |
| Ref. | Image | Part No & Description | Price | |
|---|---|---|---|---|
| 3 |  | apr4407 - Water Distribution Tray View Part Info | $33.38 | In stock |
| Ref. | Image | Part No & Description | Price | |
|---|---|---|---|---|
 | apr4229 - Saddle Valve Adapter View Part Info | $65.29 | Out of Stock | |
 | 28115205 - Flexible Bypass Hose 36 Inch View Part Info | $9.99 | In stock | |
| 2 |  | apr4403 - Scale Control Insert/float Chamber View Part Info | $19.99 | In stock |
| 7 |  | apr4040 - Water Valve. ** Read External Info** View Part Info | $66.78 | In stock |
| 8 |  | apr4004 - In Line Strainer Quantity: 1 View Part Info | $3.99 | In stock |
| 9 |  | APR4001 - Saddle Valve For Aprilaire View Part Info | $9.99 | In stock |
| 10 |  | APR4231 - Orifice Yellow Quantity: 1 View Part Info | $2.66 | In stock |
| 19 |  | APR4406 - Float Assembly Model 400 View Part Info | $23.86 | In stock |
| 20 | apr4405 - Float Cover View Part Info | $15.12 | Special order |
| Ref. | Image | Part No & Description | Price | |
|---|---|---|---|---|
 | GA50 - Relay Current Sensing Quantity: 1 View Part Info | $43.96 | In stock | |
 | apr4280 - Shock Arrestor View Part Info | $129.20 | In stock | |
 | APR4040OEM - Water Solenoid Vavle ( Oem ) View Part Info | $126.44 | In stock | |
| 4 | APR4404 - Base Model 400 View Part Info | $87.96 | Special order | |
| 5 |  | APR4728 - Cover For Aprilaire View Part Info | $146.94 | In stock |
| 6 |  | APR4410 - Water Level Sensor View Part Info | $57.02 | In stock |
| 15 |  | APR4332 - Damper Assembly View Part Info | $50.14 | In stock |
| 16 | APR4409 - Name Plate Model 400 View Part Info | $13.57 | Special order | |
| 17 | APR4408 - Hole Plug Model 400 View Part Info | $7.75 | Special order | |
| 18 |  | apr4336 - Resistor Case And Manual View Part Info | $25.68 | Out of Stock |
| Ref. | Image | Part No & Description | Price | |
|---|---|---|---|---|
 | apr8052 - Outdoor Temperature Sensor View Part Info | $16.12 | In stock |
| Ref. | Image | Part No & Description | Price | |
|---|---|---|---|---|
| 12 |  | apr4010 - Transformer For Aprilaire Quantity: 1 View Part Info | $42.54 | In stock |
| Ref. | Image | Part No & Description | Price | |
|---|---|---|---|---|
| 11 |  | apr4335 - Feed Tube With Compression Sleeve View Part Info | $15.96 | In stock |
| Ref. | Image | Part No & Description | Price | |
|---|---|---|---|---|
 | AC-912 - Pan Tabets ( 6 Pack) View Part Info | $13.65 | In stock | |
 | 246 - Humidifier Treatment View Part Info | $15.65 | In stock | |
 | T812 - Cutting Board 8 X12 Inch View Part Info | $4.99 | In stock |
| Ref. | Image | Part No & Description | Price | |
|---|---|---|---|---|
 | FSRM6 - Humidafresh Rainforest Mist Water Treatm Quantity: 1 View Part Info | $11.03 | In stock | |
 | FSCA6 - Humidafresh Cinnamon Apple Water Treatme Quantity: 1 View Part Info | $11.15 | In stock | |
 | FSFV6 - Humidafresh Vanilla Water Treatment Quantity: 1 View Part Info | $5.13 | In stock | |
 | AC802 - Humidifier Bacteriostatic Water Treatmen Quantity: 1 View Part Info | $11.28 | In stock | |
 | 1T-6 - Humdf Water Treatment32 Oz Quantity: 1 View Part Info | $11.80 | In stock | |
 | AC816 - Extra Strength Humidifier Cleaner Quantity: 1 View Part Info | $11.22 | In stock | |
 | FSOB6 - Humidafresh Ocean Breeze Quantity: 1 View Part Info | $5.13 | In stock | |
 | 3US-6 - Water Treatment Cleaner View Part Info | $11.22 | In stock |
| Ref. | Image | Part No & Description | Price | |
|---|---|---|---|---|
 | 21581001 - Worm Gear Clamp, 5 5/8 - 6 1/2 Quantity: 1 View Part Info | $1.99 | In stock |
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