You can open file: root -> components -> com_osproperty -> helpers -> helper.php
Code:
public static function dropdropBath($name, $bath, $class, $jsScript, $firstOption)
{
$configClass = self::loadConfig();
$bathArr = array();
$bathArr[] = HTMLHelper::_('select.option', '', Text::_($firstOption));
for ($i = 1; $i <= 10; $i++) {
$bathArr[] = HTMLHelper::_('select.option', $i.'.00', $i);
if ($configClass['fractional_bath'] == 1) {
$bathArr[] = HTMLHelper::_('select.option', $i . '.25', $i . '.25');
$bathArr[] = HTMLHelper::_('select.option', $i . '.50', $i . '.50');
$bathArr[] = HTMLHelper::_('select.option', $i . '.75', $i . '.75');
}
}
return HTMLHelper::_('select.genericlist', $bathArr, $name, 'class="' . $class . '" ' . $jsScript, 'value', 'text', $bath);
}
and replace 10 by your number you need.