Replacement, fully insulated drinker ball with a 10 3/4" diameter. Fits securely within the waterer cover to ensure extra protection against wind and cold.
The insulation in the Drinker Balls have an r-factor of 7 per inch.
TIP: To correctly identify the correct size for your drinker ball, the 643. 10 3/4 ball closure has a BLACK PLUG.
Featured in the following Miraco Automatic waterers:
Model 3345 - Mirafount and E-Fount
Model 3354-S and SE - Mirafount and E-fount
Model 3360 (discontinued unit)
Model 3370 - Mirafount
Model 3390 - Mirafount and E-Fount