[[!filter? &tpl=`tovartplcat` &limit=`32` &parents=`2` &fields=`types,config,style,fasad`]]

<div class="form-check">
	<input class="form-check-input checkbox_stage" type="radio" name="fasad" id="fasad-massive" value="massive">
	<label for="fasad-massive" class="form-check-label">массив</label>
</div>

<label class="form-check">
	<input class="form-check-input checkbox_stage" type="radio" name="fasad" value="massive">
	<span class="form-check-label">массив</span>
</label>

TVfasad.value

$fields = ['types', 'config', 'style', 'fasad'];
foreach ($fields as $field) {
	if(isset($_GET[$field])) $filter[] = $field . '=' . $_GET[$field];
}

'includeTVs' => implode(",", $fields)

<div class="filterbox filter_content p-4 row">
     <form class="filter_plan ajax-form">
         <input type="hidden" name="sortby" value="pagetitle">
		<input type="hidden" name="sortdir" value="asc">
    <h2 class="text-center">Фильтр</h2>
        
<h4 class="text-left"><label>тип</label></h4>
<div class="area_form_box">
<div><input class="form-check-input checkbox-stage" value="ready" type="radio" name="types">готовое решение</div>
<div><input class="form-check-input checkbox-stage" value="modul" type="radio" name="types">модульная кухня</div>
</div>
            

<h4 class="text-left"><label>конфигурация</label></h4>
<div class="area_form_box">
    <div><input class="form-check-input checkbox_stage" type="radio" name="config" value="line">прямая</div>
    <div><input class="form-check-input checkbox_stage" type="radio" name="config" value="ugol">угловая</div>
</div>

<h4 class="text-left"><label>стиль</label></h4>
<div class="area_form_box">
    <div><input class="form-check-input checkbox_stage" type="radio" name="style" value="classic">классика</div>
    <div><input class="form-check-input checkbox_stage" type="radio" name="style" value="sovr">современный</div>
    <div><input class="form-check-input checkbox_stage" type="radio" name="style" value="hitec">хай-тек</div>
    <div><input class="form-check-input checkbox_stage" type="radio" name="style" value="loft">лофт</div>
    <div><input class="form-check-input checkbox_stage" type="radio" name="style" value="scand">скандинавский</div>
</div>



<h4 class="text-left"><label>материал фасада</label></h4>

<div class="area_form_box">
    <div><input class="form-check-input checkbox_stage" type="radio" name="fasad" value="dsp">дсп</div>
    <div><input class="form-check-input checkbox_stage" type="radio" name="fasad" value="massive">массив</div>
    <div><input class="form-check-input checkbox_stage" type="radio" name="fasad" value="plastic">пластик</div>
    <div><input class="form-check-input checkbox_stage" type="radio" name="fasad" value="steklo">стекло</div>
    <div><input class="form-check-input checkbox_stage" type="radio" name="fasad" value="mdfplenka">мдф пленка</div>
    <div><input class="form-check-input checkbox_stage" type="radio" name="fasad" value="mdfkraska">мдф краска</div>
</div>

<div class="submit_btn mt-4">
<input class='reset_form ajax-reset mx-2 px-4' type="submit" value="Сбросить фильтр">
<input class='show mx-2 px-5 ajax-start' type="submit" value="Подобрать">
</div>


</form>
</div>